20013312210313 has 4 divisors (see below), whose sum is σ = 20013324029568. Its totient is φ = 20013300391060.

The previous prime is 20013312210299. The next prime is 20013312210347. The reversal of 20013312210313 is 31301221331002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20013312210313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013312210413) 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, 2837281 + ... + 6933742.

It is an arithmetic number, because the mean of its divisors is an integer number (5003331007392).

Almost surely, 2^{20013312210313} is an apocalyptic number.

It is an amenable number.

20013312210313 is a deficient number, since it is larger than the sum of its proper divisors (11819255).

20013312210313 is an equidigital number, since it uses as much as digits as its factorization.

20013312210313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11819254.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20013312210313 its reverse (31301221331002), we get a palindrome (51314533541315).

The spelling of 20013312210313 in words is "twenty trillion, thirteen billion, three hundred twelve million, two hundred ten thousand, three hundred thirteen".