311431032020293 has 2 divisors, whose sum is σ = 311431032020294. Its totient is φ = 311431032020292.

The previous prime is 311431032020281. The next prime is 311431032020323. The reversal of 311431032020293 is 392020230134113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296683296903009 + 14747735117284 = 17224497^2 + 3840278^2 .

It is a cyclic number.

It is not a de Polignac number, because 311431032020293 - 2⁵ = 311431032020261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311431032020203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155715516010146 + 155715516010147.

It is an arithmetic number, because the mean of its divisors is an integer number (155715516010147).

Almost surely, 2^{311431032020293} is an apocalyptic number.

It is an amenable number.

311431032020293 is a deficient number, since it is larger than the sum of its proper divisors (1).

311431032020293 is an equidigital number, since it uses as much as digits as its factorization.

311431032020293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 311431032020293 in words is "three hundred eleven trillion, four hundred thirty-one billion, thirty-two million, twenty thousand, two hundred ninety-three".