20001312210313 has 4 divisors (see below), whose sum is σ = 22858642526080. Its totient is φ = 17143981894548.

The previous prime is 20001312210277. The next prime is 20001312210323. The reversal of 20001312210313 is 31301221310002.

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.

It is a cyclic number.

It is not a de Polignac number, because 20001312210313 - 2¹³ = 20001312202121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001312210323) 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, 1428665157873 + ... + 1428665157886.

It is an arithmetic number, because the mean of its divisors is an integer number (5714660631520).

Almost surely, 2^{20001312210313} is an apocalyptic number.

It is an amenable number.

20001312210313 is a deficient number, since it is larger than the sum of its proper divisors (2857330315767).

20001312210313 is an equidigital number, since it uses as much as digits as its factorization.

20001312210313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857330315766.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20001312210313 its reverse (31301221310002), we get a palindrome (51302533520315).

The spelling of 20001312210313 in words is "twenty trillion, one billion, three hundred twelve million, two hundred ten thousand, three hundred thirteen".