12345152512 has 132 divisors (see below), whose sum is σ = 31318510464. Its totient is φ = 4809584640.

The previous prime is 12345152483. The next prime is 12345152513. The reversal of 12345152512 is 21525154321.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345152513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540753 + ... + 563119.

Almost surely, 2^12345152512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12345152512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15659255232).

12345152512 is an abundant number, since it is smaller than the sum of its proper divisors (18973357952).

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

12345152512 is a wasteful number, since it uses less digits than its factorization.

12345152512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22412 (or 22387 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The spelling of 12345152512 in words is "twelve billion, three hundred forty-five million, one hundred fifty-two thousand, five hundred twelve".