1275345303631 has 4 divisors (see below), whose sum is σ = 1457537489872. Its totient is φ = 1093153117392.

The previous prime is 1275345303619. The next prime is 1275345303637. The reversal of 1275345303631 is 1363035435721.

It is a happy number.

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

It is not a de Polignac number, because 1275345303631 - 2⁷ = 1275345303503 is a prime.

It is a super-2 number, since 2×1275345303631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275345303637) 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, 91096093110 + ... + 91096093123.

It is an arithmetic number, because the mean of its divisors is an integer number (364384372468).

Almost surely, 2^{1275345303631} is an apocalyptic number.

1275345303631 is a deficient number, since it is larger than the sum of its proper divisors (182192186241).

1275345303631 is an equidigital number, since it uses as much as digits as its factorization.

1275345303631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182192186240.

The product of its (nonzero) digits is 680400, while the sum is 43.

The spelling of 1275345303631 in words is "one trillion, two hundred seventy-five billion, three hundred forty-five million, three hundred three thousand, six hundred thirty-one".