202000023 has 12 divisors (see below), whose sum is σ = 292812520. Its totient is φ = 134189136.

The previous prime is 202000021. The next prime is 202000063. The reversal of 202000023 is 320000202.

It is not a de Polignac number, because 202000023 - 2¹ = 202000021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201999969 and 202000014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000021) 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, 37108 + ... + 42201.

Almost surely, 2^202000023 is an apocalyptic number.

202000023 is a deficient number, since it is larger than the sum of its proper divisors (90812497).

202000023 is a wasteful number, since it uses less digits than its factorization.

202000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79598 (or 79595 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 202000023 is about 14212.6712126890. The cubic root of 202000023 is about 586.7464531135.

Adding to 202000023 its reverse (320000202), we get a palindrome (522000225).

The spelling of 202000023 in words is "two hundred two million, twenty-three", and thus it is an aban number.