421132023 has 24 divisors (see below), whose sum is σ = 656168240. Its totient is φ = 258733440.

The previous prime is 421132013. The next prime is 421132031. The reversal of 421132023 is 320231124.

It is not a de Polignac number, because 421132023 - 2²⁴ = 404354807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421131987 and 421132005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421132013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78243 + ... + 83451.

Almost surely, 2^421132023 is an apocalyptic number.

421132023 is a deficient number, since it is larger than the sum of its proper divisors (235036217).

421132023 is a wasteful number, since it uses less digits than its factorization.

421132023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919 (or 5916 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 421132023 is about 20521.5014801549. The cubic root of 421132023 is about 749.5594586151.

Adding to 421132023 its reverse (320231124), we get a palindrome (741363147).

The spelling of 421132023 in words is "four hundred twenty-one million, one hundred thirty-two thousand, twenty-three".