111630243 has 8 divisors (see below), whose sum is σ = 151648848. Its totient is φ = 73015904.

The previous prime is 111630227. The next prime is 111630257. The reversal of 111630243 is 342036111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111630243 - 2⁴ = 111630227 is a prime.

It is a super-2 number, since 2×111630243² = 24922622304478098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111630283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350880 + ... + 351197.

It is an arithmetic number, because the mean of its divisors is an integer number (18956106).

Almost surely, 2^111630243 is an apocalyptic number.

111630243 is a deficient number, since it is larger than the sum of its proper divisors (40018605).

111630243 is an equidigital number, since it uses as much as digits as its factorization.

111630243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702133.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 111630243 is about 10565.5214258455. The cubic root of 111630243 is about 481.4974114803.

Adding to 111630243 its reverse (342036111), we get a palindrome (453666354).

The spelling of 111630243 in words is "one hundred eleven million, six hundred thirty thousand, two hundred forty-three".