1311434131 has 16 divisors (see below), whose sum is σ = 1590108160. Its totient is φ = 1056525120.

The previous prime is 1311434129. The next prime is 1311434147. The reversal of 1311434131 is 1314341131.

It is not a de Polignac number, because 1311434131 - 2¹ = 1311434129 is a prime.

It is a super-2 number, since 2×1311434131² = 3439718959903450322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311434101) 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, 21930 + ... + 55711.

It is an arithmetic number, because the mean of its divisors is an integer number (99381760).

Almost surely, 2^1311434131 is an apocalyptic number.

1311434131 is a deficient number, since it is larger than the sum of its proper divisors (278674029).

1311434131 is a wasteful number, since it uses less digits than its factorization.

1311434131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77794.

The product of its digits is 432, while the sum is 22.

The square root of 1311434131 is about 36213.7284879643. The cubic root of 1311434131 is about 1094.5833241550.

Adding to 1311434131 its reverse (1314341131), we get a palindrome (2625775262).

The spelling of 1311434131 in words is "one billion, three hundred eleven million, four hundred thirty-four thousand, one hundred thirty-one".