111012120187 has 2 divisors, whose sum is σ = 111012120188. Its totient is φ = 111012120186.

The previous prime is 111012120157. The next prime is 111012120217. The reversal of 111012120187 is 781021210111.

It is a balanced prime because it is at equal distance from previous prime (111012120157) and next prime (111012120217).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111012120187 is a prime.

It is not a weakly prime, because it can be changed into another prime (111012120157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506060093 + 55506060094.

It is an arithmetic number, because the mean of its divisors is an integer number (55506060094).

Almost surely, 2^111012120187 is an apocalyptic number.

111012120187 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012120187 is an equidigital number, since it uses as much as digits as its factorization.

111012120187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 25.

Adding to 111012120187 its reverse (781021210111), we get a palindrome (892033330298).

The spelling of 111012120187 in words is "one hundred eleven billion, twelve million, one hundred twenty thousand, one hundred eighty-seven".