31320213100001 has 12 divisors (see below), whose sum is σ = 36451834608240. Its totient is φ = 26832547332360.

The previous prime is 31320213099997. The next prime is 31320213100021. The reversal of 31320213100001 is 10000131202313.

It is not a de Polignac number, because 31320213100001 - 2² = 31320213099997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31320213100021) 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 11 ways as a sum of consecutive naturals, for example, 158824391 + ... + 159021468.

It is an arithmetic number, because the mean of its divisors is an integer number (3037652884020).

Almost surely, 2^{31320213100001} is an apocalyptic number.

It is an amenable number.

31320213100001 is a deficient number, since it is larger than the sum of its proper divisors (5131621508239).

31320213100001 is a wasteful number, since it uses less digits than its factorization.

31320213100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317847884 (or 317847877 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31320213100001 its reverse (10000131202313), we get a palindrome (41320344302314).

The spelling of 31320213100001 in words is "thirty-one trillion, three hundred twenty billion, two hundred thirteen million, one hundred thousand, one".