120345500 has 48 divisors (see below), whose sum is σ = 286741728. Its totient is φ = 43760000.

The previous prime is 120345473. The next prime is 120345517. The reversal of 120345500 is 5543021.

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

It is a congruent number.

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, 5441 + ... + 16440.

It is an arithmetic number, because the mean of its divisors is an integer number (5973786).

Almost surely, 2^120345500 is an apocalyptic number.

120345500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120345500 is an abundant number, since it is smaller than the sum of its proper divisors (166396228).

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

120345500 is a wasteful number, since it uses less digits than its factorization.

120345500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21911 (or 21899 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 120345500 is about 10970.2096607130. The cubic root of 120345500 is about 493.7153369887.

Adding to 120345500 its reverse (5543021), we get a palindrome (125888521).

The spelling of 120345500 in words is "one hundred twenty million, three hundred forty-five thousand, five hundred".