31996045441 has 2 divisors, whose sum is σ = 31996045442. Its totient is φ = 31996045440.

The previous prime is 31996045427. The next prime is 31996045493. The reversal of 31996045441 is 14454069913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21809382400 + 10186663041 = 147680^2 + 100929^2 .

It is a cyclic number.

It is not a de Polignac number, because 31996045441 - 2²⁹ = 31459174529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31996045391 and 31996045400.

It is not a weakly prime, because it can be changed into another prime (31996045241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15998022720 + 15998022721.

It is an arithmetic number, because the mean of its divisors is an integer number (15998022721).

Almost surely, 2^31996045441 is an apocalyptic number.

It is an amenable number.

31996045441 is a deficient number, since it is larger than the sum of its proper divisors (1).

31996045441 is an equidigital number, since it uses as much as digits as its factorization.

31996045441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 31996045441 in words is "thirty-one billion, nine hundred ninety-six million, forty-five thousand, four hundred forty-one".