111603244421 has 4 divisors (see below), whose sum is σ = 112406145600. Its totient is φ = 110800343244.

The previous prime is 111603244399. The next prime is 111603244469. The reversal of 111603244421 is 124442306111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111603244421 - 2³⁰ = 110529502597 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 (111603244021) 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 3 ways as a sum of consecutive naturals, for example, 401450381 + ... + 401450658.

It is an arithmetic number, because the mean of its divisors is an integer number (28101536400).

Almost surely, 2^111603244421 is an apocalyptic number.

It is an amenable number.

111603244421 is a deficient number, since it is larger than the sum of its proper divisors (802901179).

111603244421 is an equidigital number, since it uses as much as digits as its factorization.

111603244421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802901178.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 111603244421 in words is "one hundred eleven billion, six hundred three million, two hundred forty-four thousand, four hundred twenty-one".