23112412515 has 48 divisors (see below), whose sum is σ = 40856635872. Its totient is φ = 12082417152.

The previous prime is 23112412493. The next prime is 23112412537. The reversal of 23112412515 is 51521421132.

It is a happy number.

23112412515 is a `hidden beast` number, since 23 + 1 + 124 + 1 + 2 + 515 = 666.

It is an interprime number because it is at equal distance from previous prime (23112412493) and next prime (23112412537).

It is not a de Polignac number, because 23112412515 - 2⁶ = 23112412451 is a prime.

It is a super-2 number, since 2×23112412515² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2841244 + ... + 2849366.

It is an arithmetic number, because the mean of its divisors is an integer number (851179914).

Almost surely, 2^23112412515 is an apocalyptic number.

23112412515 is a deficient number, since it is larger than the sum of its proper divisors (17744223357).

23112412515 is a wasteful number, since it uses less digits than its factorization.

23112412515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380 (or 9377 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 23112412515 its reverse (51521421132), we get a palindrome (74633833647).

The spelling of 23112412515 in words is "twenty-three billion, one hundred twelve million, four hundred twelve thousand, five hundred fifteen".