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231103031201 = 7178693223403
BaseRepresentation
bin1101011100111011010…
…0000110011110100001
3211002111222010101012222
43113032310012132201
512241244333444301
6254100044000425
722460643232160
oct3271664063641
9732458111188
10231103031201
118a0126aa969
1238957b30115
1318a40086853
14b284c173d7
156028d3231b
hex35ced067a1

231103031201 has 16 divisors (see below), whose sum is σ = 279687510144. Its totient is φ = 186413777664.

The previous prime is 231103031183. The next prime is 231103031213. The reversal of 231103031201 is 102130301132.

It is a cyclic number.

It is not a de Polignac number, because 231103031201 - 234 = 213923162017 is a prime.

It is a super-2 number, since 2×2311030312012 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 231103031201.

It is not an unprimeable number, because it can be changed into a prime (231103031261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922766 + ... + 1146168.

It is an arithmetic number, because the mean of its divisors is an integer number (17480469384).

Almost surely, 2231103031201 is an apocalyptic number.

It is an amenable number.

231103031201 is a deficient number, since it is larger than the sum of its proper divisors (48584478943).

231103031201 is a wasteful number, since it uses less digits than its factorization.

231103031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232120.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 231103031201 its reverse (102130301132), we get a palindrome (333233332333).

The spelling of 231103031201 in words is "two hundred thirty-one billion, one hundred three million, thirty-one thousand, two hundred one".

Divisors: 1 7 17 119 8693 60851 147781 223403 1034467 1563821 3797851 26584957 1942042279 13594295953 33014718743 231103031201