13123634212 has 24 divisors (see below), whose sum is σ = 24881121216. Its totient is φ = 6020788128.

The previous prime is 13123634207. The next prime is 13123634213. The reversal of 13123634212 is 21243632131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13123634213) 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, 746938 + ... + 764305.

It is an arithmetic number, because the mean of its divisors is an integer number (1036713384).

Almost surely, 2^13123634212 is an apocalyptic number.

It is an amenable number.

13123634212 is a deficient number, since it is larger than the sum of its proper divisors (11757487004).

13123634212 is a wasteful number, since it uses less digits than its factorization.

13123634212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511427 (or 1511425 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The spelling of 13123634212 in words is "thirteen billion, one hundred twenty-three million, six hundred thirty-four thousand, two hundred twelve".