111240043125 has 40 divisors (see below), whose sum is σ = 187423505280. Its totient is φ = 58661328000.

The previous prime is 111240043091. The next prime is 111240043177. The reversal of 111240043125 is 521340042111.

It is not a de Polignac number, because 111240043125 - 2²⁶ = 111172934261 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111240043095 and 111240043104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 166429 + ... + 500178.

It is an arithmetic number, because the mean of its divisors is an integer number (4685587632).

Almost surely, 2^111240043125 is an apocalyptic number.

111240043125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111240043125 is a deficient number, since it is larger than the sum of its proper divisors (76183462155).

111240043125 is an frugal number, since it uses more digits than its factorization.

111240043125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666719 (or 666704 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 111240043125 its reverse (521340042111), we get a palindrome (632580085236).

The spelling of 111240043125 in words is "one hundred eleven billion, two hundred forty million, forty-three thousand, one hundred twenty-five".