20042304331 has 12 divisors (see below), whose sum is σ = 23883166440. Its totient is φ = 16760113440.

The previous prime is 20042304313. The next prime is 20042304361. The reversal of 20042304331 is 13340324002.

It is a happy number.

It is not a de Polignac number, because 20042304331 - 2¹³ = 20042296139 is a prime.

It is a super-2 number, since 2×20042304331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20042304311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4986121 + ... + 4990138.

It is an arithmetic number, because the mean of its divisors is an integer number (1990263870).

Almost surely, 2^20042304331 is an apocalyptic number.

20042304331 is a deficient number, since it is larger than the sum of its proper divisors (3840862109).

20042304331 is an equidigital number, since it uses as much as digits as its factorization.

20042304331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976314 (or 9976307 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20042304331 its reverse (13340324002), we get a palindrome (33382628333).

The spelling of 20042304331 in words is "twenty billion, forty-two million, three hundred four thousand, three hundred thirty-one".