31032111222113 has 2 divisors, whose sum is σ = 31032111222114. Its totient is φ = 31032111222112.

The previous prime is 31032111222097. The next prime is 31032111222149. The reversal of 31032111222113 is 31122211123013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30608644770064 + 423466452049 = 5532508^2 + 650743^2 .

It is a cyclic number.

It is not a de Polignac number, because 31032111222113 - 2⁴ = 31032111222097 is a prime.

It is not a weakly prime, because it can be changed into another prime (31032111228113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516055611056 + 15516055611057.

It is an arithmetic number, because the mean of its divisors is an integer number (15516055611057).

Almost surely, 2^{31032111222113} is an apocalyptic number.

It is an amenable number.

31032111222113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032111222113 is an equidigital number, since it uses as much as digits as its factorization.

31032111222113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 31032111222113 its reverse (31122211123013), we get a palindrome (62154322345126).

The spelling of 31032111222113 in words is "thirty-one trillion, thirty-two billion, one hundred eleven million, two hundred twenty-two thousand, one hundred thirteen".