111112110101287 has 2 divisors, whose sum is σ = 111112110101288. Its totient is φ = 111112110101286.

The previous prime is 111112110101059. The next prime is 111112110101303. The reversal of 111112110101287 is 782101011211111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111112110101287 - 2¹⁹ = 111112109576999 is a prime.

It is a super-2 number, since 2×111112110101287² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111112110141287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556055050643 + 55556055050644.

It is an arithmetic number, because the mean of its divisors is an integer number (55556055050644).

Almost surely, 2^{111112110101287} is an apocalyptic number.

111112110101287 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112110101287 is an equidigital number, since it uses as much as digits as its factorization.

111112110101287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 28.

Adding to 111112110101287 its reverse (782101011211111), we get a palindrome (893213121312398).

The spelling of 111112110101287 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred ten million, one hundred one thousand, two hundred eighty-seven".