420051023 has 16 divisors (see below), whose sum is σ = 504907776. Its totient is φ = 341845920.

The previous prime is 420051017. The next prime is 420051041. The reversal of 420051023 is 320150024.

It is a cyclic number.

It is not a de Polignac number, because 420051023 - 2⁴ = 420051007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420050992 and 420051010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420051013) 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, 6761 + ... + 29762.

It is an arithmetic number, because the mean of its divisors is an integer number (31556736).

Almost surely, 2^420051023 is an apocalyptic number.

420051023 is a deficient number, since it is larger than the sum of its proper divisors (84856753).

420051023 is a wasteful number, since it uses less digits than its factorization.

420051023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36614.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 420051023 is about 20495.1463278504. The cubic root of 420051023 is about 748.9175632666.

Subtracting from 420051023 its reverse (320150024), we obtain a palindrome (99900999).

The spelling of 420051023 in words is "four hundred twenty million, fifty-one thousand, twenty-three".