31032311201131 has 2 divisors, whose sum is σ = 31032311201132. Its totient is φ = 31032311201130.

The previous prime is 31032311200973. The next prime is 31032311201149. The reversal of 31032311201131 is 13110211323013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31032311201131 - 2²⁷ = 31032176983403 is a prime.

It is a super-2 number, since 2×31032311201131² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31032311201161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516155600565 + 15516155600566.

It is an arithmetic number, because the mean of its divisors is an integer number (15516155600566).

Almost surely, 2^{31032311201131} is an apocalyptic number.

31032311201131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032311201131 is an equidigital number, since it uses as much as digits as its factorization.

31032311201131 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 31032311201131 its reverse (13110211323013), we get a palindrome (44142522524144).

The spelling of 31032311201131 in words is "thirty-one trillion, thirty-two billion, three hundred eleven million, two hundred one thousand, one hundred thirty-one".