1313430431 has 2 divisors, whose sum is σ = 1313430432. Its totient is φ = 1313430430.

The previous prime is 1313430397. The next prime is 1313430473. The reversal of 1313430431 is 1340343131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313430431 - 2¹⁸ = 1313168287 is a prime.

It is a super-2 number, since 2×1313430431² = 3450198994153691522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313430397 and 1313430406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313430331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656715215 + 656715216.

It is an arithmetic number, because the mean of its divisors is an integer number (656715216).

Almost surely, 2^1313430431 is an apocalyptic number.

1313430431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313430431 is an equidigital number, since it uses as much as digits as its factorization.

1313430431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1313430431 is about 36241.2807582734. The cubic root of 1313430431 is about 1095.1384438842.

Adding to 1313430431 its reverse (1340343131), we get a palindrome (2653773562).

The spelling of 1313430431 in words is "one billion, three hundred thirteen million, four hundred thirty thousand, four hundred thirty-one".