421427162331 has 48 divisors (see below), whose sum is σ = 699845702400. Its totient is φ = 239377811904.

The previous prime is 421427162257. The next prime is 421427162407. The reversal of 421427162331 is 133261724124.

421427162331 is a `hidden beast` number, since 4 + 2 + 1 + 4 + 27 + 1 + 623 + 3 + 1 = 666.

It is not a de Polignac number, because 421427162331 - 2¹⁸ = 421426900187 is a prime.

It is a super-2 number, since 2×421427162331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421427162131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38212240 + ... + 38223266.

It is an arithmetic number, because the mean of its divisors is an integer number (14580118800).

Almost surely, 2^421427162331 is an apocalyptic number.

421427162331 is a deficient number, since it is larger than the sum of its proper divisors (278418540069).

421427162331 is a wasteful number, since it uses less digits than its factorization.

421427162331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14608 (or 14605 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

Adding to 421427162331 its reverse (133261724124), we get a palindrome (554688886455).

The spelling of 421427162331 in words is "four hundred twenty-one billion, four hundred twenty-seven million, one hundred sixty-two thousand, three hundred thirty-one".