111397783 has 4 divisors (see below), whose sum is σ = 127311760. Its totient is φ = 95483808.

The previous prime is 111397777. The next prime is 111397813. The reversal of 111397783 is 387793111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 111397783 - 2²⁵ = 77843351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111397733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7956978 + ... + 7956991.

It is an arithmetic number, because the mean of its divisors is an integer number (31827940).

Almost surely, 2^111397783 is an apocalyptic number.

111397783 is a deficient number, since it is larger than the sum of its proper divisors (15913977).

111397783 is an equidigital number, since it uses as much as digits as its factorization.

111397783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15913976.

The product of its digits is 31752, while the sum is 40.

The square root of 111397783 is about 10554.5148159449. The cubic root of 111397783 is about 481.1629541109.

The spelling of 111397783 in words is "one hundred eleven million, three hundred ninety-seven thousand, seven hundred eighty-three".