12523151116 has 48 divisors (see below), whose sum is σ = 26538926400. Its totient is φ = 5047676928.

The previous prime is 12523151111. The next prime is 12523151117. The reversal of 12523151116 is 61115132521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (12523151111) 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, 699930 + ... + 717598.

It is an arithmetic number, because the mean of its divisors is an integer number (552894300).

Almost surely, 2^12523151116 is an apocalyptic number.

It is an amenable number.

12523151116 is an abundant number, since it is smaller than the sum of its proper divisors (14015775284).

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

12523151116 is a wasteful number, since it uses less digits than its factorization.

12523151116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19186 (or 19184 counting only the distinct ones).

The product of its digits is 1800, while the sum is 28.

Adding to 12523151116 its reverse (61115132521), we get a palindrome (73638283637).

The spelling of 12523151116 in words is "twelve billion, five hundred twenty-three million, one hundred fifty-one thousand, one hundred sixteen".