1310634431 has 4 divisors (see below), whose sum is σ = 1387730592. Its totient is φ = 1233538272.

The previous prime is 1310634419. The next prime is 1310634449. The reversal of 1310634431 is 1344360131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310634431 is a prime.

It is a super-2 number, since 2×1310634431² = 3435525223445387522, which contains 22 as substring.

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 1310634431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310634131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38548055 + ... + 38548088.

It is an arithmetic number, because the mean of its divisors is an integer number (346932648).

Almost surely, 2^1310634431 is an apocalyptic number.

1310634431 is a deficient number, since it is larger than the sum of its proper divisors (77096161).

1310634431 is an equidigital number, since it uses as much as digits as its factorization.

1310634431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77096160.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1310634431 is about 36202.6854114443. The cubic root of 1310634431 is about 1094.3607900990.

Adding to 1310634431 its reverse (1344360131), we get a palindrome (2654994562).

The spelling of 1310634431 in words is "one billion, three hundred ten million, six hundred thirty-four thousand, four hundred thirty-one".