31312330020953 has 2 divisors, whose sum is σ = 31312330020954. Its totient is φ = 31312330020952.

The previous prime is 31312330020947. The next prime is 31312330021067. The reversal of 31312330020953 is 35902003321313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25271804789449 + 6040525231504 = 5027107^2 + 2457748^2 .

It is a cyclic number.

It is not a de Polignac number, because 31312330020953 - 2⁴² = 26914283509849 is a prime.

It is a super-2 number, since 2×31312330020953² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31312330020943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656165010476 + 15656165010477.

It is an arithmetic number, because the mean of its divisors is an integer number (15656165010477).

Almost surely, 2^{31312330020953} is an apocalyptic number.

It is an amenable number.

31312330020953 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312330020953 is an equidigital number, since it uses as much as digits as its factorization.

31312330020953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 35.

The spelling of 31312330020953 in words is "thirty-one trillion, three hundred twelve billion, three hundred thirty million, twenty thousand, nine hundred fifty-three".