111113455787 has 2 divisors, whose sum is σ = 111113455788. Its totient is φ = 111113455786.

The previous prime is 111113455753. The next prime is 111113455793. The reversal of 111113455787 is 787554311111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111113455787 - 2¹⁰ = 111113454763 is a prime.

It is not a weakly prime, because it can be changed into another prime (111113455087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556727893 + 55556727894.

It is an arithmetic number, because the mean of its divisors is an integer number (55556727894).

Almost surely, 2^111113455787 is an apocalyptic number.

111113455787 is a deficient number, since it is larger than the sum of its proper divisors (1).

111113455787 is an equidigital number, since it uses as much as digits as its factorization.

111113455787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 44.

Adding to 111113455787 its reverse (787554311111), we get a palindrome (898667766898).

The spelling of 111113455787 in words is "one hundred eleven billion, one hundred thirteen million, four hundred fifty-five thousand, seven hundred eighty-seven".