1311030131 has 4 divisors (see below), whose sum is σ = 1320599832. Its totient is φ = 1301460432.

The previous prime is 1311030113. The next prime is 1311030151. The reversal of 1311030131 is 1310301131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310301131 = 229 ⋅5721839.

It is a cyclic number.

It is not a de Polignac number, because 1311030131 - 2²⁶ = 1243921267 is a prime.

It is a super-2 number, since 2×1311030131² = 3437600008779754322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311030151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4784645 + ... + 4784918.

It is an arithmetic number, because the mean of its divisors is an integer number (330149958).

Almost surely, 2^1311030131 is an apocalyptic number.

1311030131 is a deficient number, since it is larger than the sum of its proper divisors (9569701).

1311030131 is an equidigital number, since it uses as much as digits as its factorization.

1311030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9569700.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1311030131 is about 36208.1500632109. The cubic root of 1311030131 is about 1094.4709136090.

Adding to 1311030131 its reverse (1310301131), we get a palindrome (2621331262).

Subtracting from 1311030131 its reverse (1310301131), we obtain a cube (729000 = 90³).

The spelling of 1311030131 in words is "one billion, three hundred eleven million, thirty thousand, one hundred thirty-one".