31213302007 has 2 divisors, whose sum is σ = 31213302008. Its totient is φ = 31213302006.

The previous prime is 31213301983. The next prime is 31213302053. The reversal of 31213302007 is 70020331213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31213302007 - 2⁷ = 31213301879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31213302607) 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 as a sum of consecutive naturals, namely, 15606651003 + 15606651004.

It is an arithmetic number, because the mean of its divisors is an integer number (15606651004).

Almost surely, 2^31213302007 is an apocalyptic number.

31213302007 is a deficient number, since it is larger than the sum of its proper divisors (1).

31213302007 is an equidigital number, since it uses as much as digits as its factorization.

31213302007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The spelling of 31213302007 in words is "thirty-one billion, two hundred thirteen million, three hundred two thousand, seven".