31883184137 has 16 divisors (see below), whose sum is σ = 38360664960. Its totient is φ = 25886760192.

The previous prime is 31883184121. The next prime is 31883184149. The reversal of 31883184137 is 73148138813.

It is a cyclic number.

It is not a de Polignac number, because 31883184137 - 2⁴ = 31883184121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31883184091 and 31883184100.

It is not an unprimeable number, because it can be changed into a prime (31883184737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2050163 + ... + 2065655.

It is an arithmetic number, because the mean of its divisors is an integer number (2397541560).

Almost surely, 2^31883184137 is an apocalyptic number.

It is an amenable number.

31883184137 is a deficient number, since it is larger than the sum of its proper divisors (6477480823).

31883184137 is a wasteful number, since it uses less digits than its factorization.

31883184137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30992.

The product of its digits is 387072, while the sum is 47.

The spelling of 31883184137 in words is "thirty-one billion, eight hundred eighty-three million, one hundred eighty-four thousand, one hundred thirty-seven".