13187923212 has 24 divisors (see below), whose sum is σ = 30779758912. Its totient is φ = 4394840400.

The previous prime is 13187923211. The next prime is 13187923289. The reversal of 13187923212 is 21232978131.

It is not an unprimeable number, because it can be changed into a prime (13187923211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92614 + ... + 186957.

Almost surely, 2^13187923212 is an apocalyptic number.

13187923212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13187923212 is an abundant number, since it is smaller than the sum of its proper divisors (17591835700).

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

13187923212 is a wasteful number, since it uses less digits than its factorization.

13187923212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283509 (or 283507 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The spelling of 13187923212 in words is "thirteen billion, one hundred eighty-seven million, nine hundred twenty-three thousand, two hundred twelve".