12131940136 has 32 divisors (see below), whose sum is σ = 23142319200. Its totient is φ = 5960738880.

The previous prime is 12131940113. The next prime is 12131940167. The reversal of 12131940136 is 63104913121.

It is a junction number, because it is equal to n+sod(n) for n = 12131940098 and 12131940107.

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, 1886206 + ... + 1892626.

It is an arithmetic number, because the mean of its divisors is an integer number (723197475).

Almost surely, 2^12131940136 is an apocalyptic number.

It is an amenable number.

12131940136 is a deficient number, since it is larger than the sum of its proper divisors (11010379064).

12131940136 is a wasteful number, since it uses less digits than its factorization.

12131940136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10489 (or 10485 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 12131940136 in words is "twelve billion, one hundred thirty-one million, nine hundred forty thousand, one hundred thirty-six".