42321403124 has 192 divisors, whose sum is σ = 101126817792. Its totient is φ = 14964825600.

The previous prime is 42321403051. The next prime is 42321403139. The reversal of 42321403124 is 42130412324.

It is a super-2 number, since 2×42321403124² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 42321403093 and 42321403102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74117759 + ... + 74118329.

It is an arithmetic number, because the mean of its divisors is an integer number (526702176).

Almost surely, 2^42321403124 is an apocalyptic number.

42321403124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42321403124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50563408896).

42321403124 is an abundant number, since it is smaller than the sum of its proper divisors (58805414668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42321403124 is a wasteful number, since it uses less digits than its factorization.

42321403124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 42321403124 its reverse (42130412324), we get a palindrome (84451815448).

The spelling of 42321403124 in words is "forty-two billion, three hundred twenty-one million, four hundred three thousand, one hundred twenty-four".