120010000 has 100 divisors (see below), whose sum is σ = 317260944. Its totient is φ = 43600000.

The previous prime is 120009991. The next prime is 120010019. The reversal of 120010000 is 10021.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (4).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109455 + ... + 110545.

Almost surely, 2^120010000 is an apocalyptic number.

120010000 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 120010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158630472).

120010000 is an abundant number, since it is smaller than the sum of its proper divisors (197250944).

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

120010000 is a wasteful number, since it uses less digits than its factorization.

120010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 120010000 is about 10954.9075760592. The cubic root of 120010000 is about 493.2561156637.

Adding to 120010000 its reverse (10021), we get a palindrome (120020021).

The spelling of 120010000 in words is "one hundred twenty million, ten thousand".