12523151120 has 20 divisors (see below), whose sum is σ = 29116326540. Its totient is φ = 5009260416.

The previous prime is 12523151119. The next prime is 12523151129. The reversal of 12523151120 is 2115132521.

It can be written as a sum of positive squares in 2 ways, for example, as 6679465984 + 5843685136 = 81728^2 + 76444^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (12523151129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78269615 + ... + 78269774.

It is an arithmetic number, because the mean of its divisors is an integer number (1455816327).

Almost surely, 2^12523151120 is an apocalyptic number.

12523151120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12523151120 is an abundant number, since it is smaller than the sum of its proper divisors (16593175420).

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

12523151120 is a wasteful number, since it uses less digits than its factorization.

12523151120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156539402 (or 156539396 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 12523151120 its reverse (2115132521), we get a palindrome (14638283641).

The spelling of 12523151120 in words is "twelve billion, five hundred twenty-three million, one hundred fifty-one thousand, one hundred twenty".