1312110011131 has 4 divisors (see below), whose sum is σ = 1318908508792. Its totient is φ = 1305311513472.

The previous prime is 1312110011123. The next prime is 1312110011143. The reversal of 1312110011131 is 1311100112131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312110011131 - 2³ = 1312110011123 is a prime.

It is a super-2 number, since 2×1312110011131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312110011101) 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, 3399248541 + ... + 3399248926.

It is an arithmetic number, because the mean of its divisors is an integer number (329727127198).

Almost surely, 2^{1312110011131} is an apocalyptic number.

1312110011131 is a deficient number, since it is larger than the sum of its proper divisors (6798497661).

1312110011131 is an equidigital number, since it uses as much as digits as its factorization.

1312110011131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798497660.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 1312110011131 its reverse (1311100112131), we get a palindrome (2623210123262).

The spelling of 1312110011131 in words is "one trillion, three hundred twelve billion, one hundred ten million, eleven thousand, one hundred thirty-one".