20132320023 has 36 divisors (see below), whose sum is σ = 30913966720. Its totient is φ = 12622749696.

The previous prime is 20132319997. The next prime is 20132320081. The reversal of 20132320023 is 32002323102.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20132320023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20132319978 and 20132320005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132320093) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5821911 + ... + 5825367.

Almost surely, 2^20132320023 is an apocalyptic number.

20132320023 is a deficient number, since it is larger than the sum of its proper divisors (10781646697).

20132320023 is a wasteful number, since it uses less digits than its factorization.

20132320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736 (or 5716 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20132320023 its reverse (32002323102), we get a palindrome (52134643125).

The spelling of 20132320023 in words is "twenty billion, one hundred thirty-two million, three hundred twenty thousand, twenty-three".