1231113133113 has 16 divisors (see below), whose sum is σ = 1653539139840. Its totient is φ = 814715139456.

The previous prime is 1231113133043. The next prime is 1231113133123. The reversal of 1231113133113 is 3113313111321.

It is not a de Polignac number, because 1231113133113 - 2¹⁶ = 1231113067577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231113133123) 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, 11780256 + ... + 11884302.

It is an arithmetic number, because the mean of its divisors is an integer number (103346196240).

Almost surely, 2^{1231113133113} is an apocalyptic number.

It is an amenable number.

1231113133113 is a deficient number, since it is larger than the sum of its proper divisors (422426006727).

1231113133113 is a wasteful number, since it uses less digits than its factorization.

1231113133113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132976.

The product of its digits is 486, while the sum is 24.

Adding to 1231113133113 its reverse (3113313111321), we get a palindrome (4344426244434).

The spelling of 1231113133113 in words is "one trillion, two hundred thirty-one billion, one hundred thirteen million, one hundred thirty-three thousand, one hundred thirteen".