111012111119509 has 2 divisors, whose sum is σ = 111012111119510. Its totient is φ = 111012111119508.

The previous prime is 111012111119501. The next prime is 111012111119531. The reversal of 111012111119509 is 905911111210111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79149224662225 + 31862886457284 = 8896585^2 + 5644722^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012111119509 - 2³ = 111012111119501 is a prime.

It is a super-2 number, since 2×111012111119509² (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 (111012111119501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506055559754 + 55506055559755.

It is an arithmetic number, because the mean of its divisors is an integer number (55506055559755).

Almost surely, 2^{111012111119509} is an apocalyptic number.

It is an amenable number.

111012111119509 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012111119509 is an equidigital number, since it uses as much as digits as its factorization.

111012111119509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 34.

The spelling of 111012111119509 in words is "one hundred eleven trillion, twelve billion, one hundred eleven million, one hundred nineteen thousand, five hundred nine".