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23112132213 = 3172549177787
BaseRepresentation
bin10101100001100101…
…110010011001110101
32012122201112222001210
4111201211302121311
5334313201212323
614341221112033
71445511611442
oct254145623165
965581488053
1023112132213
119890218015
124590258619
13224438cba1
14119375a9c9
159040ae293
hex561972675

23112132213 has 16 divisors (see below), whose sum is σ = 32641876800. Its totient is φ = 14495959296.

The previous prime is 23112132191. The next prime is 23112132227. The reversal of 23112132213 is 31223121132.

It is not a de Polignac number, because 23112132213 - 221 = 23110035061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23112132213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112132283) 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, 41106 + ... + 218892.

It is an arithmetic number, because the mean of its divisors is an integer number (2040117300).

Almost surely, 223112132213 is an apocalyptic number.

It is an amenable number.

23112132213 is a deficient number, since it is larger than the sum of its proper divisors (9529744587).

23112132213 is a wasteful number, since it uses less digits than its factorization.

23112132213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180356.

The product of its digits is 432, while the sum is 21.

Adding to 23112132213 its reverse (31223121132), we get a palindrome (54335253345).

The spelling of 23112132213 in words is "twenty-three billion, one hundred twelve million, one hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 3 17 51 2549 7647 43333 129999 177787 533361 3022379 9067137 453179063 1359537189 7704044071 23112132213