20302000331 has 4 divisors (see below), whose sum is σ = 20335120032. Its totient is φ = 20268880632.

The previous prime is 20302000237. The next prime is 20302000361. The reversal of 20302000331 is 13300020302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13300020302 = 2 ⋅6650010151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20302000331 is a prime.

It is a super-2 number, since 2×20302000331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302000361) 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 3 ways as a sum of consecutive naturals, for example, 16558931 + ... + 16560156.

It is an arithmetic number, because the mean of its divisors is an integer number (5083780008).

Almost surely, 2^20302000331 is an apocalyptic number.

20302000331 is a deficient number, since it is larger than the sum of its proper divisors (33119701).

20302000331 is an equidigital number, since it uses as much as digits as its factorization.

20302000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33119700.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20302000331 its reverse (13300020302), we get a palindrome (33602020633).

The spelling of 20302000331 in words is "twenty billion, three hundred two million, three hundred thirty-one", and thus it is an aban number.