111143390 has 24 divisors (see below), whose sum is σ = 204852888. Its totient is φ = 43416240.

The previous prime is 111143371. The next prime is 111143393. The reversal of 111143390 is 93341111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111143393) 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 11 ways as a sum of consecutive naturals, for example, 15485 + ... + 21495.

It is an arithmetic number, because the mean of its divisors is an integer number (8535537).

Almost surely, 2^111143390 is an apocalyptic number.

111143390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111143390 is a deficient number, since it is larger than the sum of its proper divisors (93709498).

111143390 is an equidigital number, since it uses as much as digits as its factorization.

111143390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104 (or 6061 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 111143390 is about 10542.4565448476. The cubic root of 111143390 is about 480.7964064753.

The spelling of 111143390 in words is "one hundred eleven million, one hundred forty-three thousand, three hundred ninety".