23151234015 has 96 divisors (see below), whose sum is σ = 52294709376. Its totient is φ = 9194618880.

The previous prime is 23151233953. The next prime is 23151234053. The reversal of 23151234015 is 51043215132.

23151234015 is a `hidden beast` number, since 2 + 315 + 1 + 2 + 340 + 1 + 5 = 666.

It is not a de Polignac number, because 23151234015 - 2⁹ = 23151233503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23151234015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 96666 + ... + 235895.

It is an arithmetic number, because the mean of its divisors is an integer number (544736556).

Almost surely, 2^23151234015 is an apocalyptic number.

23151234015 is an abundant number, since it is smaller than the sum of its proper divisors (29143475361).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23151234015 is a wasteful number, since it uses less digits than its factorization.

23151234015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332609 (or 332606 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 23151234015 its reverse (51043215132), we get a palindrome (74194449147).

The spelling of 23151234015 in words is "twenty-three billion, one hundred fifty-one million, two hundred thirty-four thousand, fifteen".