120310121100 has 72 divisors (see below), whose sum is σ = 374874010000. Its totient is φ = 29614798080.

The previous prime is 120310121089. The next prime is 120310121177. The reversal of 120310121100 is 1121013021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15420475 + ... + 15428274.

Almost surely, 2^120310121100 is an apocalyptic number.

120310121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120310121100 is an abundant number, since it is smaller than the sum of its proper divisors (254563888900).

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

120310121100 is a wasteful number, since it uses less digits than its factorization.

120310121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30848779 (or 30848772 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 120310121100 its reverse (1121013021), we get a palindrome (121431134121).

The spelling of 120310121100 in words is "one hundred twenty billion, three hundred ten million, one hundred twenty-one thousand, one hundred".