31656136342 has 16 divisors (see below), whose sum is σ = 49553736192. Its totient is φ = 15138363240.

The previous prime is 31656136333. The next prime is 31656136357. The reversal of 31656136342 is 24363165613.

It is a super-2 number, since 2×31656136342² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31656136295 and 31656136304.

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, 521923 + ... + 579409.

It is an arithmetic number, because the mean of its divisors is an integer number (3097108512).

Almost surely, 2^31656136342 is an apocalyptic number.

31656136342 is a deficient number, since it is larger than the sum of its proper divisors (17897599850).

31656136342 is a wasteful number, since it uses less digits than its factorization.

31656136342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69483.

The product of its digits is 233280, while the sum is 40.

The spelling of 31656136342 in words is "thirty-one billion, six hundred fifty-six million, one hundred thirty-six thousand, three hundred forty-two".