31331330330113 has 16 divisors (see below), whose sum is σ = 34495287494976. Its totient is φ = 28220174922240.

The previous prime is 31331330330081. The next prime is 31331330330117. The reversal of 31331330330113 is 31103303313313.

It is a cyclic number.

It is not a de Polignac number, because 31331330330113 - 2⁵ = 31331330330081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31331330330117) 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, 1562931 + ... + 8068792.

It is an arithmetic number, because the mean of its divisors is an integer number (2155955468436).

Almost surely, 2^{31331330330113} is an apocalyptic number.

It is an amenable number.

31331330330113 is a deficient number, since it is larger than the sum of its proper divisors (3163957164863).

31331330330113 is a wasteful number, since it uses less digits than its factorization.

31331330330113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9634464.

The product of its (nonzero) digits is 6561, while the sum is 28.

Adding to 31331330330113 its reverse (31103303313313), we get a palindrome (62434633643426).

The spelling of 31331330330113 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred thirty million, three hundred thirty thousand, one hundred thirteen".