111121372 has 12 divisors (see below), whose sum is σ = 202917456. Its totient is φ = 53144960.

The previous prime is 111121363. The next prime is 111121379. The reversal of 111121372 is 273121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603829 + ... + 604012.

It is an arithmetic number, because the mean of its divisors is an integer number (16909788).

Almost surely, 2^111121372 is an apocalyptic number.

It is an amenable number.

111121372 is a deficient number, since it is larger than the sum of its proper divisors (91796084).

111121372 is a wasteful number, since it uses less digits than its factorization.

111121372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207868 (or 1207866 counting only the distinct ones).

The product of its digits is 84, while the sum is 19.

The square root of 111121372 is about 10541.4122393539. The cubic root of 111121372 is about 480.7646550762.

Adding to 111121372 its reverse (273121111), we get a palindrome (384242483).

The spelling of 111121372 in words is "one hundred eleven million, one hundred twenty-one thousand, three hundred seventy-two".