20324000137 has 18 divisors (see below), whose sum is σ = 24298532622. Its totient is φ = 16949689344.

The previous prime is 20324000131. The next prime is 20324000141. The reversal of 20324000137 is 73100042302.

It can be written as a sum of positive squares in 3 ways, for example, as 5534764816 + 14789235321 = 74396^2 + 121611^2 .

It is not a de Polignac number, because 20324000137 - 2³ = 20324000129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20324000131) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 84408 + ... + 218569.

It is an arithmetic number, because the mean of its divisors is an integer number (1349918479).

Almost surely, 2^20324000137 is an apocalyptic number.

It is an amenable number.

20324000137 is a deficient number, since it is larger than the sum of its proper divisors (3974532485).

20324000137 is an equidigital number, since it uses as much as digits as its factorization.

20324000137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303065 (or 303021 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

Adding to 20324000137 its reverse (73100042302), we get a palindrome (93424042439).

The spelling of 20324000137 in words is "twenty billion, three hundred twenty-four million, one hundred thirty-seven", and thus it is an aban number.