120100185045 has 24 divisors (see below), whose sum is σ = 208198688256. Its totient is φ = 64045729248.

The previous prime is 120100185041. The next prime is 120100185067. The reversal of 120100185045 is 540581001021.

It is not a de Polignac number, because 120100185045 - 2² = 120100185041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100185041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228232 + ... + 540638.

It is an arithmetic number, because the mean of its divisors is an integer number (8674945344).

Almost surely, 2^120100185045 is an apocalyptic number.

120100185045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120100185045 is a deficient number, since it is larger than the sum of its proper divisors (88098503211).

120100185045 is a wasteful number, since it uses less digits than its factorization.

120100185045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320961 (or 320958 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

Adding to 120100185045 its reverse (540581001021), we get a palindrome (660681186066).

The spelling of 120100185045 in words is "one hundred twenty billion, one hundred million, one hundred eighty-five thousand, forty-five".