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23124311231 = 73411998263
BaseRepresentation
bin10101100010010100…
…001111110010111111
32012200120110201112112
4111202110033302333
5334324310424411
614342334124235
71446020255000
oct254224176277
965616421475
1023124311231
11989708631a
12459435067b
132246a654c8
14119520b1a7
159051b7b8b
hex56250fcbf

23124311231 has 32 divisors (see below), whose sum is σ = 27767040000. Its totient is φ = 19237901760.

The previous prime is 23124311207. The next prime is 23124311269. The reversal of 23124311231 is 13211342132.

It is not a de Polignac number, because 23124311231 - 26 = 23124311167 is a prime.

It is a super-2 number, since 2×231243112312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23124311197 and 23124311206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23124311731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2794406 + ... + 2802668.

It is an arithmetic number, because the mean of its divisors is an integer number (867720000).

Almost surely, 223124311231 is an apocalyptic number.

23124311231 is a deficient number, since it is larger than the sum of its proper divisors (4642728769).

23124311231 is an equidigital number, since it uses as much as digits as its factorization.

23124311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524 (or 8510 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 23124311231 its reverse (13211342132), we get a palindrome (36335653363).

The spelling of 23124311231 in words is "twenty-three billion, one hundred twenty-four million, three hundred eleven thousand, two hundred thirty-one".

Divisors: 1 7 41 49 199 287 343 1393 2009 8159 8263 9751 14063 57113 57841 68257 338783 399791 404887 1644337 2371481 2798537 2834209 11510359 16600367 67417817 80572513 116202569 471924719 564007591 3303473033 23124311231