20032340423 has 16 divisors (see below), whose sum is σ = 20684160000. Its totient is φ = 19391007072.

The previous prime is 20032340413. The next prime is 20032340443. The reversal of 20032340423 is 32404323002.

It is not a de Polignac number, because 20032340423 - 2⁴ = 20032340407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032340413) 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, 1751678 + ... + 1763076.

It is an arithmetic number, because the mean of its divisors is an integer number (1292760000).

Almost surely, 2^20032340423 is an apocalyptic number.

20032340423 is a deficient number, since it is larger than the sum of its proper divisors (651819577).

20032340423 is a wasteful number, since it uses less digits than its factorization.

20032340423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11854.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20032340423 its reverse (32404323002), we get a palindrome (52436663425).

The spelling of 20032340423 in words is "twenty billion, thirty-two million, three hundred forty thousand, four hundred twenty-three".