111012001109 has 2 divisors, whose sum is σ = 111012001110. Its totient is φ = 111012001108.

The previous prime is 111012001097. The next prime is 111012001147. The reversal of 111012001109 is 901100210111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68894700484 + 42117300625 = 262478^2 + 205225^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012001109 - 2²⁴ = 110995223893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012001409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506000554 + 55506000555.

It is an arithmetic number, because the mean of its divisors is an integer number (55506000555).

Almost surely, 2^111012001109 is an apocalyptic number.

It is an amenable number.

111012001109 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012001109 is an equidigital number, since it uses as much as digits as its factorization.

111012001109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 111012001109 in words is "one hundred eleven billion, twelve million, one thousand, one hundred nine".