13011996 has 12 divisors (see below), whose sum is σ = 30361352. Its totient is φ = 4337328.

The previous prime is 13011967. The next prime is 13012001. The reversal of 13011996 is 69911031.

It is a tau number, because it is divible by the number of its divisors (12).

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, 542155 + ... + 542178.

Almost surely, 2^13011996 is an apocalyptic number.

It is an amenable number.

13011996 is an abundant number, since it is smaller than the sum of its proper divisors (17349356).

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

13011996 is a wasteful number, since it uses less digits than its factorization.

13011996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084340 (or 1084338 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 13011996 is about 3607.2144377622. The cubic root of 13011996 is about 235.2057711805.

The spelling of 13011996 in words is "thirteen million, eleven thousand, nine hundred ninety-six".