421831138124 has 24 divisors (see below), whose sum is σ = 824042227008. Its totient is φ = 187282322640.

The previous prime is 421831138111. The next prime is 421831138147.

It is a happy number.

421831138124 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111475682 + ... + 111479465.

It is an arithmetic number, because the mean of its divisors is an integer number (34335092792).

Almost surely, 2^421831138124 is an apocalyptic number.

421831138124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421831138124 is a deficient number, since it is larger than the sum of its proper divisors (402211088884).

421831138124 is a wasteful number, since it uses less digits than its factorization.

421831138124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222955205 (or 222955203 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

It can be divided in two parts, 421831 and 138124, that added together give a palindrome (559955).

The spelling of 421831138124 in words is "four hundred twenty-one billion, eight hundred thirty-one million, one hundred thirty-eight thousand, one hundred twenty-four".