1111200009187 has 2 divisors, whose sum is σ = 1111200009188. Its totient is φ = 1111200009186.

The previous prime is 1111200009163. The next prime is 1111200009253. The reversal of 1111200009187 is 7819000021111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111200009187 - 2³⁵ = 1076840270819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111200009107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555600004593 + 555600004594.

It is an arithmetic number, because the mean of its divisors is an integer number (555600004594).

Almost surely, 2^{1111200009187} is an apocalyptic number.

1111200009187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111200009187 is an equidigital number, since it uses as much as digits as its factorization.

1111200009187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 31.

The spelling of 1111200009187 in words is "one trillion, one hundred eleven billion, two hundred million, nine thousand, one hundred eighty-seven".