20020432023 has 12 divisors (see below), whose sum is σ = 28926573520. Its totient is φ = 13343183136.

The previous prime is 20020432021. The next prime is 20020432027. The reversal of 20020432023 is 32023402002.

It is not a de Polignac number, because 20020432023 - 2¹ = 20020432021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020431987 and 20020432005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020432021) 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, 280486 + ... + 344547.

Almost surely, 2^20020432023 is an apocalyptic number.

20020432023 is a deficient number, since it is larger than the sum of its proper divisors (8906141497).

20020432023 is a wasteful number, since it uses less digits than its factorization.

20020432023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628598 (or 628595 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20020432023 its reverse (32023402002), we get a palindrome (52043834025).

The spelling of 20020432023 in words is "twenty billion, twenty million, four hundred thirty-two thousand, twenty-three".