1310443431 has 12 divisors (see below), whose sum is σ = 1920540216. Its totient is φ = 794207920.

The previous prime is 1310443429. The next prime is 1310443481. The reversal of 1310443431 is 1343440131.

It is not a de Polignac number, because 1310443431 - 2¹ = 1310443429 is a prime.

It is a super-2 number, since 2×1310443431² = 3434523971702103522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310443481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1804656 + ... + 1805381.

It is an arithmetic number, because the mean of its divisors is an integer number (160045018).

Almost surely, 2^1310443431 is an apocalyptic number.

1310443431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1310443431 is a deficient number, since it is larger than the sum of its proper divisors (610096785).

1310443431 is a wasteful number, since it uses less digits than its factorization.

1310443431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610062 (or 3610051 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1310443431 is about 36200.0473894717. The cubic root of 1310443431 is about 1094.3076267707.

Adding to 1310443431 its reverse (1343440131), we get a palindrome (2653883562).

The spelling of 1310443431 in words is "one billion, three hundred ten million, four hundred forty-three thousand, four hundred thirty-one".