10021131313 has 4 divisors (see below), whose sum is σ = 10038030948. Its totient is φ = 10004231680.

The previous prime is 10021131299. The next prime is 10021131347. The reversal of 10021131313 is 31313112001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5509053729 + 4512077584 = 74223^2 + 67172^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021131313 - 2²¹ = 10019034161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021131413) 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, 8448928 + ... + 8450113.

It is an arithmetic number, because the mean of its divisors is an integer number (2509507737).

Almost surely, 2^10021131313 is an apocalyptic number.

It is an amenable number.

10021131313 is a deficient number, since it is larger than the sum of its proper divisors (16899635).

10021131313 is an equidigital number, since it uses as much as digits as its factorization.

10021131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16899634.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 10021131313 its reverse (31313112001), we get a palindrome (41334243314).

The spelling of 10021131313 in words is "ten billion, twenty-one million, one hundred thirty-one thousand, three hundred thirteen".