12132013312 has 36 divisors (see below), whose sum is σ = 24252752916. Its totient is φ = 6056960000.

The previous prime is 12132013307. The next prime is 12132013349. The reversal of 12132013312 is 21331023121.

It can be written as a sum of positive squares in 2 ways, for example, as 11529605376 + 602407936 = 107376^2 + 24544^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12132013312.

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, 138312 + ... + 208312.

It is an arithmetic number, because the mean of its divisors is an integer number (673687581).

Almost surely, 2^12132013312 is an apocalyptic number.

It is an amenable number.

12132013312 is a deficient number, since it is larger than the sum of its proper divisors (12120739604).

12132013312 is an frugal number, since it uses more digits than its factorization.

12132013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70694 (or 70680 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12132013312 its reverse (21331023121), we get a palindrome (33463036433).

The spelling of 12132013312 in words is "twelve billion, one hundred thirty-two million, thirteen thousand, three hundred twelve".