111120102109987 has 2 divisors, whose sum is σ = 111120102109988. Its totient is φ = 111120102109986.

The previous prime is 111120102109967. The next prime is 111120102110021. The reversal of 111120102109987 is 789901201021111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111120102109987 - 2²³ = 111120093721379 is a prime.

It is not a weakly prime, because it can be changed into another prime (111120102109967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560051054993 + 55560051054994.

It is an arithmetic number, because the mean of its divisors is an integer number (55560051054994).

Almost surely, 2^{111120102109987} is an apocalyptic number.

111120102109987 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120102109987 is an equidigital number, since it uses as much as digits as its factorization.

111120102109987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 43.

The spelling of 111120102109987 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred two million, one hundred nine thousand, nine hundred eighty-seven".