20203331313 has 64 divisors (see below), whose sum is σ = 32140800000. Its totient is φ = 11150737920.

The previous prime is 20203331279. The next prime is 20203331329. The reversal of 20203331313 is 31313330202.

It is not a de Polignac number, because 20203331313 - 2¹⁶ = 20203265777 is a prime.

It is a super-2 number, since 2×20203331313² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20203331313.

It is not an unprimeable number, because it can be changed into a prime (20203331363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4343413 + ... + 4348061.

It is an arithmetic number, because the mean of its divisors is an integer number (502200000).

Almost surely, 2^20203331313 is an apocalyptic number.

It is an amenable number.

20203331313 is a deficient number, since it is larger than the sum of its proper divisors (11937468687).

20203331313 is a wasteful number, since it uses less digits than its factorization.

20203331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20203331313 its reverse (31313330202), we get a palindrome (51516661515).

It can be divided in two parts, 2020 and 3331313, that added together give a palindrome (3333333).

The spelling of 20203331313 in words is "twenty billion, two hundred three million, three hundred thirty-one thousand, three hundred thirteen".