31222490953 has 2 divisors, whose sum is σ = 31222490954. Its totient is φ = 31222490952.

The previous prime is 31222490947. The next prime is 31222490969. The reversal of 31222490953 is 35909422213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22341878784 + 8880612169 = 149472^2 + 94237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31222490953 is a prime.

It is not a weakly prime, because it can be changed into another prime (31222490353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15611245476 + 15611245477.

It is an arithmetic number, because the mean of its divisors is an integer number (15611245477).

Almost surely, 2^31222490953 is an apocalyptic number.

It is an amenable number.

31222490953 is a deficient number, since it is larger than the sum of its proper divisors (1).

31222490953 is an equidigital number, since it uses as much as digits as its factorization.

31222490953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 31222490953 in words is "thirty-one billion, two hundred twenty-two million, four hundred ninety thousand, nine hundred fifty-three".