120111124500 has 72 divisors (see below), whose sum is σ = 378910574952. Its totient is φ = 32029632000.

The previous prime is 120111124429. The next prime is 120111124501. The reversal of 120111124500 is 5421111021.

120111124500 is a `hidden beast` number, since 1 + 201 + 1 + 1 + 12 + 450 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7388433936 + 112722690564 = 85956^2 + 335742^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111124501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13341181 + ... + 13350180.

Almost surely, 2^120111124500 is an apocalyptic number.

120111124500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120111124500 is an abundant number, since it is smaller than the sum of its proper divisors (258799450452).

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

120111124500 is a wasteful number, since it uses less digits than its factorization.

120111124500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26691386 (or 26691371 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 120111124500 its reverse (5421111021), we get a palindrome (125532235521).

The spelling of 120111124500 in words is "one hundred twenty billion, one hundred eleven million, one hundred twenty-four thousand, five hundred".