311440304324013 has 16 divisors (see below), whose sum is σ = 418524608194560. Its totient is φ = 205991444022336.

The previous prime is 311440304323969. The next prime is 311440304324129. The reversal of 311440304324013 is 310423403044113.

It is not a de Polignac number, because 311440304324013 - 2⁹ = 311440304323501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311440304724013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171996003 + ... + 173797311.

It is an arithmetic number, because the mean of its divisors is an integer number (26157788012160).

Almost surely, 2^{311440304324013} is an apocalyptic number.

It is an amenable number.

311440304324013 is a deficient number, since it is larger than the sum of its proper divisors (107084303870547).

311440304324013 is a wasteful number, since it uses less digits than its factorization.

311440304324013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255236.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 311440304324013 its reverse (310423403044113), we get a palindrome (621863707368126).

The spelling of 311440304324013 in words is "three hundred eleven trillion, four hundred forty billion, three hundred four million, three hundred twenty-four thousand, thirteen".