420244254231 has 8 divisors (see below), whose sum is σ = 560331341184. Its totient is φ = 280160001720.

The previous prime is 420244254223. The next prime is 420244254319. The reversal of 420244254231 is 132452442024.

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

It is not a de Polignac number, because 420244254231 - 2³ = 420244254223 is a prime.

It is a super-2 number, since 2×420244254231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420244254192 and 420244254201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420244254211) 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, 334435 + ... + 975876.

It is an arithmetic number, because the mean of its divisors is an integer number (70041417648).

Almost surely, 2^420244254231 is an apocalyptic number.

420244254231 is a deficient number, since it is larger than the sum of its proper divisors (140087086953).

420244254231 is a wasteful number, since it uses less digits than its factorization.

420244254231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417221.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 420244254231 its reverse (132452442024), we get a palindrome (552696696255).

The spelling of 420244254231 in words is "four hundred twenty billion, two hundred forty-four million, two hundred fifty-four thousand, two hundred thirty-one".