311023203310973 has 2 divisors, whose sum is σ = 311023203310974. Its totient is φ = 311023203310972.

The previous prime is 311023203310933. The next prime is 311023203311047. The reversal of 311023203310973 is 379013302320113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220505066444569 + 90518136866404 = 14849413^2 + 9514102^2 .

It is a cyclic number.

It is not a de Polignac number, because 311023203310973 - 2²⁰ = 311023202262397 is a prime.

It is a super-2 number, since 2×311023203310973² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311023203310903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155511601655486 + 155511601655487.

It is an arithmetic number, because the mean of its divisors is an integer number (155511601655487).

Almost surely, 2^{311023203310973} is an apocalyptic number.

It is an amenable number.

311023203310973 is a deficient number, since it is larger than the sum of its proper divisors (1).

311023203310973 is an equidigital number, since it uses as much as digits as its factorization.

311023203310973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 38.

The spelling of 311023203310973 in words is "three hundred eleven trillion, twenty-three billion, two hundred three million, three hundred ten thousand, nine hundred seventy-three".