420125431 has 12 divisors (see below), whose sum is σ = 463206016. Its totient is φ = 380761920.

The previous prime is 420125399. The next prime is 420125441. The reversal of 420125431 is 134521024.

It is not a de Polignac number, because 420125431 - 2⁵ = 420125399 is a prime.

It is a super-2 number, since 2×420125431² = 353010755545871522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420125441) 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, 35626 + ... + 45928.

Almost surely, 2^420125431 is an apocalyptic number.

420125431 is a deficient number, since it is larger than the sum of its proper divisors (43080585).

420125431 is a wasteful number, since it uses less digits than its factorization.

420125431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10662 (or 10651 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 420125431 is about 20496.9615065258. The cubic root of 420125431 is about 748.9617818376.

Adding to 420125431 its reverse (134521024), we get a palindrome (554646455).

The spelling of 420125431 in words is "four hundred twenty million, one hundred twenty-five thousand, four hundred thirty-one".