111916109603 has 8 divisors (see below), whose sum is σ = 114945237840. Its totient is φ = 108887211360.

The previous prime is 111916109551. The next prime is 111916109609. The reversal of 111916109603 is 306901619111.

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 111916109603 - 2¹² = 111916105507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111916109609) 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, 1471433 + ... + 1545621.

It is an arithmetic number, because the mean of its divisors is an integer number (14368154730).

Almost surely, 2^111916109603 is an apocalyptic number.

111916109603 is a deficient number, since it is larger than the sum of its proper divisors (3029128237).

111916109603 is an equidigital number, since it uses as much as digits as its factorization.

111916109603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114997.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 111916109603 in words is "one hundred eleven billion, nine hundred sixteen million, one hundred nine thousand, six hundred three".