423420231 has 8 divisors (see below), whose sum is σ = 607988080. Its totient is φ = 260566272.

The previous prime is 423420203. The next prime is 423420251. The reversal of 423420231 is 132024324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423420231 - 2⁵ = 423420199 is a prime.

It is a super-2 number, since 2×423420231² = 358569384040186722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423420198 and 423420207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423420251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5428426 + ... + 5428503.

It is an arithmetic number, because the mean of its divisors is an integer number (75998510).

Almost surely, 2^423420231 is an apocalyptic number.

423420231 is a deficient number, since it is larger than the sum of its proper divisors (184567849).

423420231 is a wasteful number, since it uses less digits than its factorization.

423420231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10856945.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 423420231 is about 20577.1774303474. The cubic root of 423420231 is about 750.9145767237.

Adding to 423420231 its reverse (132024324), we get a palindrome (555444555).

The spelling of 423420231 in words is "four hundred twenty-three million, four hundred twenty thousand, two hundred thirty-one".