20203320331313 has 16 divisors (see below), whose sum is σ = 23266577220480. Its totient is φ = 17184339744000.

The previous prime is 20203320331231. The next prime is 20203320331339. The reversal of 20203320331313 is 31313302330202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20203320331313 - 2¹² = 20203320327217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20203320331373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26946713 + ... + 27686313.

It is an arithmetic number, because the mean of its divisors is an integer number (1454161076280).

Almost surely, 2^{20203320331313} is an apocalyptic number.

It is an amenable number.

20203320331313 is a deficient number, since it is larger than the sum of its proper divisors (3063256889167).

20203320331313 is a wasteful number, since it uses less digits than its factorization.

20203320331313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769528.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 20203320331313 its reverse (31313302330202), we get a palindrome (51516622661515).

The spelling of 20203320331313 in words is "twenty trillion, two hundred three billion, three hundred twenty million, three hundred thirty-one thousand, three hundred thirteen".