1311040304331 has 16 divisors (see below), whose sum is σ = 1763580220704. Its totient is φ = 866264129024.

The previous prime is 1311040304261. The next prime is 1311040304347. The reversal of 1311040304331 is 1334030401131.

It is a cyclic number.

It is not a de Polignac number, because 1311040304331 - 2⁹ = 1311040303819 is a prime.

It is a super-2 number, since 2×1311040304331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311040304531) 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, 19111465 + ... + 19179941.

It is an arithmetic number, because the mean of its divisors is an integer number (110223763794).

Almost surely, 2^{1311040304331} is an apocalyptic number.

1311040304331 is a deficient number, since it is larger than the sum of its proper divisors (452539916373).

1311040304331 is a wasteful number, since it uses less digits than its factorization.

1311040304331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125070.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1311040304331 its reverse (1334030401131), we get a palindrome (2645070705462).

The spelling of 1311040304331 in words is "one trillion, three hundred eleven billion, forty million, three hundred four thousand, three hundred thirty-one".