1313340431 has 8 divisors (see below), whose sum is σ = 1437553824. Its totient is φ = 1192439520.

The previous prime is 1313340421. The next prime is 1313340449. The reversal of 1313340431 is 1340433131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313340431 - 2⁶ = 1313340367 is a prime.

It is a super-2 number, since 2×1313340431² = 3449726175398531522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313340397 and 1313340406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313340421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827291 + ... + 828876.

It is an arithmetic number, because the mean of its divisors is an integer number (179694228).

Almost surely, 2^1313340431 is an apocalyptic number.

1313340431 is a deficient number, since it is larger than the sum of its proper divisors (124213393).

1313340431 is a wasteful number, since it uses less digits than its factorization.

1313340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656241.

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

The square root of 1313340431 is about 36240.0390590297. The cubic root of 1313340431 is about 1095.1134293094.

Adding to 1313340431 its reverse (1340433131), we get a palindrome (2653773562).

The spelling of 1313340431 in words is "one billion, three hundred thirteen million, three hundred forty thousand, four hundred thirty-one".