130431311 has 4 divisors (see below), whose sum is σ = 130767000. Its totient is φ = 130095624.

The previous prime is 130431289. The next prime is 130431317. The reversal of 130431311 is 113134031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113134031 = 17 ⋅6654943.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130431311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130431311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130431317) 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, 167261 + ... + 168038.

It is an arithmetic number, because the mean of its divisors is an integer number (32691750).

Almost surely, 2^130431311 is an apocalyptic number.

130431311 is a deficient number, since it is larger than the sum of its proper divisors (335689).

130431311 is an equidigital number, since it uses as much as digits as its factorization.

130431311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335688.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 130431311 is about 11420.6528272249. The cubic root of 130431311 is about 507.1393229479.

Adding to 130431311 its reverse (113134031), we get a palindrome (243565342).

The spelling of 130431311 in words is "one hundred thirty million, four hundred thirty-one thousand, three hundred eleven".