111443051 has 2 divisors, whose sum is σ = 111443052. Its totient is φ = 111443050.

The previous prime is 111443023. The next prime is 111443053. The reversal of 111443051 is 150344111.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (150344111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111443051 - 2⁶ = 111442987 is a prime.

Together with 111443053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111443053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55721525 + 55721526.

It is an arithmetic number, because the mean of its divisors is an integer number (55721526).

Almost surely, 2^111443051 is an apocalyptic number.

111443051 is a deficient number, since it is larger than the sum of its proper divisors (1).

111443051 is an equidigital number, since it uses as much as digits as its factorization.

111443051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 111443051 is about 10556.6590832517. The cubic root of 111443051 is about 481.2281209821.

Adding to 111443051 its reverse (150344111), we get a palindrome (261787162).

The spelling of 111443051 in words is "one hundred eleven million, four hundred forty-three thousand, fifty-one".