111405011 has 2 divisors, whose sum is σ = 111405012. Its totient is φ = 111405010.

The previous prime is 111404983. The next prime is 111405053. The reversal of 111405011 is 110504111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111405011 - 2²² = 107210707 is a prime.

It is a super-3 number, since 3×111405011³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111405061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55702505 + 55702506.

It is an arithmetic number, because the mean of its divisors is an integer number (55702506).

Almost surely, 2^111405011 is an apocalyptic number.

111405011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111405011 is an equidigital number, since it uses as much as digits as its factorization.

111405011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 111405011 is about 10554.8572230988. The cubic root of 111405011 is about 481.1733605736.

Adding to 111405011 its reverse (110504111), we get a palindrome (221909122).

The spelling of 111405011 in words is "one hundred eleven million, four hundred five thousand, eleven".