31303326136 has 16 divisors (see below), whose sum is σ = 58841585640. Its totient is φ = 15612236640.

The previous prime is 31303326127. The next prime is 31303326149. The reversal of 31303326136 is 63162330313.

It is a junction number, because it is equal to n+sod(n) for n = 31303326098 and 31303326107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4924930 + ... + 4931281.

Almost surely, 2^31303326136 is an apocalyptic number.

It is an amenable number.

31303326136 is a deficient number, since it is larger than the sum of its proper divisors (27538259504).

31303326136 is a wasteful number, since it uses less digits than its factorization.

31303326136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9856614 (or 9856610 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 31303326136 its reverse (63162330313), we get a palindrome (94465656449).

The spelling of 31303326136 in words is "thirty-one billion, three hundred three million, three hundred twenty-six thousand, one hundred thirty-six".