100420234120 has 64 divisors (see below), whose sum is σ = 238148064000. Its totient is φ = 38004277248.

The previous prime is 100420234069. The next prime is 100420234181. The reversal of 100420234120 is 21432024001.

It is a super-2 number, since 2×100420234120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498529 + ... + 670351.

It is an arithmetic number, because the mean of its divisors is an integer number (3721063500).

Almost surely, 2^100420234120 is an apocalyptic number.

100420234120 is a gapful number since it is divisible by the number (10) 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 100420234120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119074032000).

100420234120 is an abundant number, since it is smaller than the sum of its proper divisors (137727829880).

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

100420234120 is a wasteful number, since it uses less digits than its factorization.

100420234120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172622 (or 172618 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 100420234120 its reverse (21432024001), we get a palindrome (121852258121).

The spelling of 100420234120 in words is "one hundred billion, four hundred twenty million, two hundred thirty-four thousand, one hundred twenty".