111116051 has 4 divisors (see below), whose sum is σ = 111165552. Its totient is φ = 111066552.

The previous prime is 111116041. The next prime is 111116053. The reversal of 111116051 is 150611111.

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

It is a cyclic number.

It is not a de Polignac number, because 111116051 - 2⁶ = 111115987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111116053) 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, 21215 + ... + 25928.

It is an arithmetic number, because the mean of its divisors is an integer number (27791388).

Almost surely, 2^111116051 is an apocalyptic number.

111116051 is a deficient number, since it is larger than the sum of its proper divisors (49501).

111116051 is an equidigital number, since it uses as much as digits as its factorization.

111116051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49500.

The product of its (nonzero) digits is 30, while the sum is 17.

The square root of 111116051 is about 10541.1598507944. The cubic root of 111116051 is about 480.7569812162.

Adding to 111116051 its reverse (150611111), we get a palindrome (261727162).

The spelling of 111116051 in words is "one hundred eleven million, one hundred sixteen thousand, fifty-one".