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200310121031 = 1923458375563
BaseRepresentation
bin1011101010001101101…
…0011110001001000111
3201011000221211110120112
42322203122132021013
511240213342333111
6232004325023235
720320604635646
oct2724332361107
9634027743515
10200310121031
1177a50928779
12329a3554b1b
1315b73651947
1499a336b35d
1553257d1e8b
hex2ea369e247

200310121031 has 8 divisors (see below), whose sum is σ = 220020270720. Its totient is φ = 181516722552.

The previous prime is 200310121027. The next prime is 200310121051. The reversal of 200310121031 is 130121013002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200310121031 - 22 = 200310121027 is a prime.

It is a super-2 number, since 2×2003101210312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200310120997 and 200310121015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200310121051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229187345 + ... + 229188218.

It is an arithmetic number, because the mean of its divisors is an integer number (27502533840).

Almost surely, 2200310121031 is an apocalyptic number.

200310121031 is a deficient number, since it is larger than the sum of its proper divisors (19710149689).

200310121031 is a wasteful number, since it uses less digits than its factorization.

200310121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458375605.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 200310121031 its reverse (130121013002), we get a palindrome (330431134033).

The spelling of 200310121031 in words is "two hundred billion, three hundred ten million, one hundred twenty-one thousand, thirty-one".

Divisors: 1 19 23 437 458375563 8709135697 10542637949 200310121031