11947431096 has 32 divisors (see below), whose sum is σ = 33187309200. Its totient is φ = 3982476960.

The previous prime is 11947431061. The next prime is 11947431101. The reversal of 11947431096 is 69013474911.

It is a happy number.

It is a super-2 number, since 2×11947431096² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27655875 + ... + 27656306.

Almost surely, 2^11947431096 is an apocalyptic number.

It is an amenable number.

11947431096 is an abundant number, since it is smaller than the sum of its proper divisors (21239878104).

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

11947431096 is a wasteful number, since it uses less digits than its factorization.

11947431096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55312196 (or 55312186 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 11947431096 in words is "eleven billion, nine hundred forty-seven million, four hundred thirty-one thousand, ninety-six".