31333300113 has 16 divisors (see below), whose sum is σ = 42927117696. Its totient is φ = 20314707840.

The previous prime is 31333300109. The next prime is 31333300171. The reversal of 31333300113 is 31100333313.

It is not a de Polignac number, because 31333300113 - 2² = 31333300109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31333300113.

It is not an unprimeable number, because it can be changed into a prime (31333300513) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 173428 + ... + 304538.

It is an arithmetic number, because the mean of its divisors is an integer number (2682944856).

Almost surely, 2^31333300113 is an apocalyptic number.

It is an amenable number.

31333300113 is a deficient number, since it is larger than the sum of its proper divisors (11593817583).

31333300113 is a wasteful number, since it uses less digits than its factorization.

31333300113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133304.

The product of its (nonzero) digits is 729, while the sum is 21.

Adding to 31333300113 its reverse (31100333313), we get a palindrome (62433633426).

The spelling of 31333300113 in words is "thirty-one billion, three hundred thirty-three million, three hundred thousand, one hundred thirteen".