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231122201201 = 1985391424561
BaseRepresentation
bin1101011100111111110…
…1001110101001110001
3211002120022012022111222
43113033331032221301
512241314240414301
6254102010514425
722461265203323
oct3271775165161
9732508168458
10231122201201
118a022503641
1238962435a15
1318a44039248
14b2875a7613
15602a86c31b
hex35cff4ea71

231122201201 has 8 divisors (see below), whose sum is σ = 243315189600. Its totient is φ = 218932079040.

The previous prime is 231122201161. The next prime is 231122201267. The reversal of 231122201201 is 102102221132.

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 231122201201 - 214 = 231122184817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231122201201.

It is not an unprimeable number, because it can be changed into a prime (231122201501) 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, 550040 + ... + 874521.

It is an arithmetic number, because the mean of its divisors is an integer number (30414398700).

Almost surely, 2231122201201 is an apocalyptic number.

It is an amenable number.

231122201201 is a deficient number, since it is larger than the sum of its proper divisors (12192988399).

231122201201 is a wasteful number, since it uses less digits than its factorization.

231122201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433119.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 231122201201 its reverse (102102221132), we get a palindrome (333224422333).

The spelling of 231122201201 in words is "two hundred thirty-one billion, one hundred twenty-two million, two hundred one thousand, two hundred one".

Divisors: 1 19 8539 162241 1424561 27066659 12164326379 231122201201