311221322201423 has 2 divisors, whose sum is σ = 311221322201424. Its totient is φ = 311221322201422.

The previous prime is 311221322201369. The next prime is 311221322201437. The reversal of 311221322201423 is 324102223122113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311221322201423 - 2²⁴ = 311221305424207 is a prime.

It is a super-2 number, since 2×311221322201423² (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 (311221322231423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155610661100711 + 155610661100712.

It is an arithmetic number, because the mean of its divisors is an integer number (155610661100712).

Almost surely, 2^{311221322201423} is an apocalyptic number.

311221322201423 is a deficient number, since it is larger than the sum of its proper divisors (1).

311221322201423 is an equidigital number, since it uses as much as digits as its factorization.

311221322201423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 311221322201423 its reverse (324102223122113), we get a palindrome (635323545323536).

The spelling of 311221322201423 in words is "three hundred eleven trillion, two hundred twenty-one billion, three hundred twenty-two million, two hundred one thousand, four hundred twenty-three".