1310443302431 has 4 divisors (see below), whose sum is σ = 1387528202592. Its totient is φ = 1233358402272.

The previous prime is 1310443302373. The next prime is 1310443302473. The reversal of 1310443302431 is 1342033440131.

It is a happy number.

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-1310443302431 is a prime.

It is a super-2 number, since 2×1310443302431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310443302394 and 1310443302403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310443302481) 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, 38542450055 + ... + 38542450088.

It is an arithmetic number, because the mean of its divisors is an integer number (346882050648).

Almost surely, 2^{1310443302431} is an apocalyptic number.

1310443302431 is a deficient number, since it is larger than the sum of its proper divisors (77084900161).

1310443302431 is an equidigital number, since it uses as much as digits as its factorization.

1310443302431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77084900160.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1310443302431 its reverse (1342033440131), we get a palindrome (2652476742562).

The spelling of 1310443302431 in words is "one trillion, three hundred ten billion, four hundred forty-three million, three hundred two thousand, four hundred thirty-one".