23515110451 has 16 divisors (see below), whose sum is σ = 26987904000. Its totient is φ = 20070872640.

The previous prime is 23515110407. The next prime is 23515110503. The reversal of 23515110451 is 15401151532.

It is not a de Polignac number, because 23515110451 - 2²⁷ = 23380892723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23515110401) 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, 1643175 + ... + 1657423.

It is an arithmetic number, because the mean of its divisors is an integer number (1686744000).

Almost surely, 2^23515110451 is an apocalyptic number.

23515110451 is a deficient number, since it is larger than the sum of its proper divisors (3472793549).

23515110451 is a wasteful number, since it uses less digits than its factorization.

23515110451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15234.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 23515110451 its reverse (15401151532), we get a palindrome (38916261983).

The spelling of 23515110451 in words is "twenty-three billion, five hundred fifteen million, one hundred ten thousand, four hundred fifty-one".