1310100232021 has 12 divisors (see below), whose sum is σ = 1524023266188. Its totient is φ = 1122921600192.

The previous prime is 1310100232013. The next prime is 1310100232037. The reversal of 1310100232021 is 1202320010131.

It can be written as a sum of positive squares in 2 ways, for example, as 956658091921 + 353442140100 = 978089^2 + 594510^2 .

It is not a de Polignac number, because 1310100232021 - 2³ = 1310100232013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310100231986 and 1310100232004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310100232321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2674825 + ... + 3126481.

It is an arithmetic number, because the mean of its divisors is an integer number (127001938849).

Almost surely, 2^{1310100232021} is an apocalyptic number.

It is an amenable number.

1310100232021 is a deficient number, since it is larger than the sum of its proper divisors (213923034167).

1310100232021 is an equidigital number, since it uses as much as digits as its factorization.

1310100232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510868 (or 510861 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1310100232021 its reverse (1202320010131), we get a palindrome (2512420242152).

The spelling of 1310100232021 in words is "one trillion, three hundred ten billion, one hundred million, two hundred thirty-two thousand, twenty-one".