1310431241021 has 16 divisors (see below), whose sum is σ = 1522663936128. Its totient is φ = 1104467140800.

The previous prime is 1310431240991. The next prime is 1310431241039. The reversal of 1310431241021 is 1201421340131.

It is a cyclic number.

It is not a de Polignac number, because 1310431241021 - 2²⁶ = 1310364132157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310431241051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888611 + ... + 1846751.

It is an arithmetic number, because the mean of its divisors is an integer number (95166496008).

Almost surely, 2^{1310431241021} is an apocalyptic number.

It is an amenable number.

1310431241021 is a deficient number, since it is larger than the sum of its proper divisors (212232695107).

1310431241021 is an equidigital number, since it uses as much as digits as its factorization.

1310431241021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961412.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1310431241021 its reverse (1201421340131), we get a palindrome (2511852581152).

The spelling of 1310431241021 in words is "one trillion, three hundred ten billion, four hundred thirty-one million, two hundred forty-one thousand, twenty-one".