421124034100 has 144 divisors (see below), whose sum is σ = 1139758050816. Its totient is φ = 131210352000.

The previous prime is 421124034047. The next prime is 421124034103. The reversal of 421124034100 is 1430421124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421124034103) 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, 24346455 + ... + 24363745.

It is an arithmetic number, because the mean of its divisors is an integer number (7914986464).

Almost surely, 2^421124034100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421124034100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569879025408).

421124034100 is an abundant number, since it is smaller than the sum of its proper divisors (718634016716).

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

421124034100 is a wasteful number, since it uses less digits than its factorization.

421124034100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20486 (or 20479 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 421124034100 its reverse (1430421124), we get a palindrome (422554455224).

The spelling of 421124034100 in words is "four hundred twenty-one billion, one hundred twenty-four million, thirty-four thousand, one hundred".