31020002013131 has 2 divisors, whose sum is σ = 31020002013132. Its totient is φ = 31020002013130.

The previous prime is 31020002013113. The next prime is 31020002013263. The reversal of 31020002013131 is 13131020002013.

Together with previous prime (31020002013113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31020002013131 - 2⁴² = 26621955502027 is a prime.

It is a super-2 number, since 2×31020002013131² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31020002013101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510001006565 + 15510001006566.

It is an arithmetic number, because the mean of its divisors is an integer number (15510001006566).

Almost surely, 2^{31020002013131} is an apocalyptic number.

31020002013131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020002013131 is an equidigital number, since it uses as much as digits as its factorization.

31020002013131 is an odious number, because the sum of its binary digits is odd.

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

Adding to 31020002013131 its reverse (13131020002013), we get a palindrome (44151022015144).

The spelling of 31020002013131 in words is "thirty-one trillion, twenty billion, two million, thirteen thousand, one hundred thirty-one".