1311310131 has 16 divisors (see below), whose sum is σ = 1788091008. Its totient is φ = 854568000.

The previous prime is 1311310097. The next prime is 1311310151. The reversal of 1311310131 is 1310131131.

It is not a de Polignac number, because 1311310131 - 2¹⁹ = 1310785843 is a prime.

It is a super-2 number, since 2×1311310131² = 3439068519326474322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311310131.

It is not an unprimeable number, because it can be changed into a prime (1311310151) 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, 1431 + ... + 51231.

It is an arithmetic number, because the mean of its divisors is an integer number (111755688).

Almost surely, 2^1311310131 is an apocalyptic number.

1311310131 is a deficient number, since it is larger than the sum of its proper divisors (476780877).

1311310131 is a wasteful number, since it uses less digits than its factorization.

1311310131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50002.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1311310131 is about 36212.0163895909. The cubic root of 1311310131 is about 1094.5488243640.

Adding to 1311310131 its reverse (1310131131), we get a palindrome (2621441262).

The spelling of 1311310131 in words is "one billion, three hundred eleven million, three hundred ten thousand, one hundred thirty-one".