31301820313 has 16 divisors (see below), whose sum is σ = 33328736640. Its totient is φ = 29313792000.

The previous prime is 31301820301. The next prime is 31301820317. The reversal of 31301820313 is 31302810313.

It is a cyclic number.

It is not a de Polignac number, because 31301820313 - 2⁵ = 31301820281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31301820317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1217356 + ... + 1242802.

It is an arithmetic number, because the mean of its divisors is an integer number (2083046040).

Almost surely, 2^31301820313 is an apocalyptic number.

It is an amenable number.

31301820313 is a deficient number, since it is larger than the sum of its proper divisors (2026916327).

31301820313 is a wasteful number, since it uses less digits than its factorization.

31301820313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26208.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 31301820313 in words is "thirty-one billion, three hundred one million, eight hundred twenty thousand, three hundred thirteen".