1312131103311 has 16 divisors (see below), whose sum is σ = 2002037945600. Its totient is φ = 748814174208.

The previous prime is 1312131103289. The next prime is 1312131103321. The reversal of 1312131103311 is 1133011312131.

It is not a de Polignac number, because 1312131103311 - 2⁵ = 1312131103279 is a prime.

It is a super-2 number, since 2×1312131103311² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312131103321) 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, 40609621 + ... + 40641918.

It is an arithmetic number, because the mean of its divisors is an integer number (125127371600).

Almost surely, 2^{1312131103311} is an apocalyptic number.

1312131103311 is a deficient number, since it is larger than the sum of its proper divisors (689906842289).

1312131103311 is an equidigital number, since it uses as much as digits as its factorization.

1312131103311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81252318.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1312131103311 its reverse (1133011312131), we get a palindrome (2445142415442).

The spelling of 1312131103311 in words is "one trillion, three hundred twelve billion, one hundred thirty-one million, one hundred three thousand, three hundred eleven".