20313132645213 has 10 divisors (see below), whose sum is σ = 30344309260254. Its totient is φ = 13542088430088.

The previous prime is 20313132645193. The next prime is 20313132645229. The reversal of 20313132645213 is 31254623131302.

20313132645213 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 3 + 1 + 3 + 2 + 645 + 2 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19728761073849 + 584371571364 = 4441707^2 + 764442^2 .

It is not a de Polignac number, because 20313132645213 - 2¹² = 20313132641117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313132645283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 125389707606 + ... + 125389707767.

Almost surely, 2^{20313132645213} is an apocalyptic number.

It is an amenable number.

20313132645213 is a deficient number, since it is larger than the sum of its proper divisors (10031176615041).

20313132645213 is an equidigital number, since it uses as much as digits as its factorization.

20313132645213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250779415385 (or 250779415376 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 20313132645213 its reverse (31254623131302), we get a palindrome (51567755776515).

The spelling of 20313132645213 in words is "twenty trillion, three hundred thirteen billion, one hundred thirty-two million, six hundred forty-five thousand, two hundred thirteen".