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203031120201 = 372133711325411
BaseRepresentation
bin1011110100010110011…
…0010000100101001001
3201102001120212112201120
42331011212100211021
511311301431321301
6233134325305453
720445205022100
oct2750546204511
9642046775646
10203031120201
1179117857718
1233422865289
13161b82ab520
149b808a9037
155434613e36
hex2f45990949

203031120201 has 96 divisors (see below), whose sum is σ = 351390630528. Its totient is φ = 103272744960.

The previous prime is 203031120179. The next prime is 203031120233. The reversal of 203031120201 is 102021130302.

It is not a de Polignac number, because 203031120201 - 214 = 203031103817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203031120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7977186 + ... + 8002596.

It is an arithmetic number, because the mean of its divisors is an integer number (3660319068).

Almost surely, 2203031120201 is an apocalyptic number.

203031120201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

203031120201 is a deficient number, since it is larger than the sum of its proper divisors (148359510327).

203031120201 is a wasteful number, since it uses less digits than its factorization.

203031120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25591 (or 25584 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 203031120201 its reverse (102021130302), we get a palindrome (305052250503).

The spelling of 203031120201 in words is "two hundred three billion, thirty-one million, one hundred twenty thousand, two hundred one".

Divisors: 1 3 7 13 21 37 39 49 91 111 113 147 259 273 339 481 637 777 791 1443 1469 1813 1911 2373 3367 4181 4407 5439 5537 10101 10283 12543 16611 23569 25411 29267 30849 54353 70707 71981 76233 87801 163059 177877 204869 215943 330343 380471 533631 614607 940207 991029 1141413 1245139 2312401 2663297 2820621 2871443 3735417 6581449 6937203 7989891 8614329 12222691 16186807 19744347 20100101 36668073 37328759 46070143 48560421 60300303 85558837 106243391 111986277 138210429 140700707 256676511 261301313 318730173 422102121 598911859 743703737 783903939 1381164083 1796735577 1829109191 2231111211 4143492249 5205926159 5487327573 9668148581 15617778477 29004445743 67677040067 203031120201