311201311212023 has 2 divisors, whose sum is σ = 311201311212024. Its totient is φ = 311201311212022.

The previous prime is 311201311212007. The next prime is 311201311212041. The reversal of 311201311212023 is 320212113102113.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311201311212023 - 2⁴ = 311201311212007 is a prime.

It is a super-2 number, since 2×311201311212023² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311201311212023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311201311212523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155600655606011 + 155600655606012.

It is an arithmetic number, because the mean of its divisors is an integer number (155600655606012).

Almost surely, 2^{311201311212023} is an apocalyptic number.

311201311212023 is a deficient number, since it is larger than the sum of its proper divisors (1).

311201311212023 is an equidigital number, since it uses as much as digits as its factorization.

311201311212023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 311201311212023 its reverse (320212113102113), we get a palindrome (631413424314136).

The spelling of 311201311212023 in words is "three hundred eleven trillion, two hundred one billion, three hundred eleven million, two hundred twelve thousand, twenty-three".