20003102331 has 16 divisors (see below), whose sum is σ = 27034635264. Its totient is φ = 13154494464.

The previous prime is 20003102311. The next prime is 20003102401. The reversal of 20003102331 is 13320130002.

It is not a de Polignac number, because 20003102331 - 2⁵ = 20003102299 is a prime.

It is a super-2 number, since 2×20003102331² (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 20003102331.

It is not an unprimeable number, because it can be changed into a prime (20003102311) 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, 46531 + ... + 205356.

It is an arithmetic number, because the mean of its divisors is an integer number (1689664704).

Almost surely, 2^20003102331 is an apocalyptic number.

20003102331 is a deficient number, since it is larger than the sum of its proper divisors (7031532933).

20003102331 is a wasteful number, since it uses less digits than its factorization.

20003102331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252250.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20003102331 its reverse (13320130002), we get a palindrome (33323232333).

The spelling of 20003102331 in words is "twenty billion, three million, one hundred two thousand, three hundred thirty-one".