111228303 has 4 divisors (see below), whose sum is σ = 148304408. Its totient is φ = 74152200.

The previous prime is 111228289. The next prime is 111228317. The reversal of 111228303 is 303822111.

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

It is an interprime number because it is at equal distance from previous prime (111228289) and next prime (111228317).

It is not a de Polignac number, because 111228303 - 2²¹ = 109131151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111228303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111228323) 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, 18538048 + ... + 18538053.

It is an arithmetic number, because the mean of its divisors is an integer number (37076102).

Almost surely, 2^111228303 is an apocalyptic number.

111228303 is a deficient number, since it is larger than the sum of its proper divisors (37076105).

111228303 is an equidigital number, since it uses as much as digits as its factorization.

111228303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37076104.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 111228303 is about 10546.4829682696. The cubic root of 111228303 is about 480.9188173320.

The spelling of 111228303 in words is "one hundred eleven million, two hundred twenty-eight thousand, three hundred three".