111602438249 has 4 divisors (see below), whose sum is σ = 114324448980. Its totient is φ = 108880427520.

The previous prime is 111602438239. The next prime is 111602438251. The reversal of 111602438249 is 942834206111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7321882624 + 104280555625 = 85568^2 + 322925^2 .

It is a cyclic number.

It is not a de Polignac number, because 111602438249 - 2⁸ = 111602437993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2722010689 = 111602438249 / (1 + 1 + 1 + 6 + 0 + 2 + 4 + 3 + 8 + 2 + 4 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111602438239) 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, 1361005304 + ... + 1361005385.

It is an arithmetic number, because the mean of its divisors is an integer number (28581112245).

Almost surely, 2^111602438249 is an apocalyptic number.

It is an amenable number.

111602438249 is a deficient number, since it is larger than the sum of its proper divisors (2722010731).

111602438249 is an equidigital number, since it uses as much as digits as its factorization.

111602438249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722010730.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 111602438249 in words is "one hundred eleven billion, six hundred two million, four hundred thirty-eight thousand, two hundred forty-nine".