31032012131311 has 2 divisors, whose sum is σ = 31032012131312. Its totient is φ = 31032012131310.

The previous prime is 31032012131293. The next prime is 31032012131371. The reversal of 31032012131311 is 11313121023013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31032012131311 - 2²¹ = 31032010034159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31032012131371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516006065655 + 15516006065656.

It is an arithmetic number, because the mean of its divisors is an integer number (15516006065656).

Almost surely, 2^{31032012131311} is an apocalyptic number.

31032012131311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032012131311 is an equidigital number, since it uses as much as digits as its factorization.

31032012131311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31032012131311 its reverse (11313121023013), we get a palindrome (42345133154324).

The spelling of 31032012131311 in words is "thirty-one trillion, thirty-two billion, twelve million, one hundred thirty-one thousand, three hundred eleven".