100223421320 has 128 divisors (see below), whose sum is σ = 255484247040. Its totient is φ = 35065578240.

The previous prime is 100223421289. The next prime is 100223421367. The reversal of 100223421320 is 23124322001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 100223421292 and 100223421301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1228109 + ... + 1307171.

It is an arithmetic number, because the mean of its divisors is an integer number (1995970680).

Almost surely, 2^100223421320 is an apocalyptic number.

100223421320 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 100223421320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127742123520).

100223421320 is an abundant number, since it is smaller than the sum of its proper divisors (155260825720).

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

100223421320 is a wasteful number, since it uses less digits than its factorization.

100223421320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79195 (or 79191 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 100223421320 its reverse (23124322001), we get a palindrome (123347743321).

The spelling of 100223421320 in words is "one hundred billion, two hundred twenty-three million, four hundred twenty-one thousand, three hundred twenty".