31033322113 has 2 divisors, whose sum is σ = 31033322114. Its totient is φ = 31033322112.

The previous prime is 31033322051. The next prime is 31033322137. The reversal of 31033322113 is 31122333013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26446240129 + 4587081984 = 162623^2 + 67728^2 .

It is a cyclic number.

It is not a de Polignac number, because 31033322113 - 2³³ = 22443387521 is a prime.

It is not a weakly prime, because it can be changed into another prime (31033322143) 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, 15516661056 + 15516661057.

It is an arithmetic number, because the mean of its divisors is an integer number (15516661057).

Almost surely, 2^31033322113 is an apocalyptic number.

It is an amenable number.

31033322113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033322113 is an equidigital number, since it uses as much as digits as its factorization.

31033322113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31033322113 its reverse (31122333013), we get a palindrome (62155655126).

The spelling of 31033322113 in words is "thirty-one billion, thirty-three million, three hundred twenty-two thousand, one hundred thirteen".