120020203100 has 108 divisors (see below), whose sum is σ = 316137984624. Its totient is φ = 39360625920.

The previous prime is 120020203091. The next prime is 120020203159. The reversal of 120020203100 is 1302020021.

It is a happy number.

It is a super-2 number, since 2×120020203100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 419777 + ... + 645176.

Almost surely, 2^120020203100 is an apocalyptic number.

120020203100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120020203100 is an abundant number, since it is smaller than the sum of its proper divisors (196117781524).

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

120020203100 is a wasteful number, since it uses less digits than its factorization.

120020203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065004 (or 1064990 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 120020203100 its reverse (1302020021), we get a palindrome (121322223121).

The spelling of 120020203100 in words is "one hundred twenty billion, twenty million, two hundred three thousand, one hundred".