311423155253513 has 4 divisors (see below), whose sum is σ = 312166408607760. Its totient is φ = 310679901899268.

The previous prime is 311423155253501. The next prime is 311423155253579. The reversal of 311423155253513 is 315352551324113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311423155253513 - 2¹² = 311423155249417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311423155253113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371626676495 + ... + 371626677332.

It is an arithmetic number, because the mean of its divisors is an integer number (78041602151940).

Almost surely, 2^{311423155253513} is an apocalyptic number.

It is an amenable number.

311423155253513 is a deficient number, since it is larger than the sum of its proper divisors (743253354247).

311423155253513 is an equidigital number, since it uses as much as digits as its factorization.

311423155253513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743253354246.

The product of its digits is 810000, while the sum is 44.

The spelling of 311423155253513 in words is "three hundred eleven trillion, four hundred twenty-three billion, one hundred fifty-five million, two hundred fifty-three thousand, five hundred thirteen".