311032232013013 has 4 divisors (see below), whose sum is σ = 355465408014880. Its totient is φ = 266599056011148.

The previous prime is 311032232012963. The next prime is 311032232013043. The reversal of 311032232013013 is 310310232230113.

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 not a de Polignac number, because 311032232013013 - 2³³ = 311023642078421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311032232013043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22216588000923 + ... + 22216588000936.

It is an arithmetic number, because the mean of its divisors is an integer number (88866352003720).

Almost surely, 2^{311032232013013} is an apocalyptic number.

It is an amenable number.

311032232013013 is a deficient number, since it is larger than the sum of its proper divisors (44433176001867).

311032232013013 is an equidigital number, since it uses as much as digits as its factorization.

311032232013013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44433176001866.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 311032232013013 its reverse (310310232230113), we get a palindrome (621342464243126).

The spelling of 311032232013013 in words is "three hundred eleven trillion, thirty-two billion, two hundred thirty-two million, thirteen thousand, thirteen".