12132540312 has 16 divisors (see below), whose sum is σ = 30331350840. Its totient is φ = 4044180096.

The previous prime is 12132540293. The next prime is 12132540323. The reversal of 12132540312 is 21304523121.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 505522513 = 12132540312 / (1 + 2 + 1 + 3 + 2 + 5 + 4 + 0 + 3 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252761233 + ... + 252761280.

Almost surely, 2^12132540312 is an apocalyptic number.

12132540312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12132540312 is an abundant number, since it is smaller than the sum of its proper divisors (18198810528).

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

12132540312 is a wasteful number, since it uses less digits than its factorization.

12132540312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505522522 (or 505522518 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 12132540312 in words is "twelve billion, one hundred thirty-two million, five hundred forty thousand, three hundred twelve".