111121200000611 has 2 divisors, whose sum is σ = 111121200000612. Its totient is φ = 111121200000610.

The previous prime is 111121200000607. The next prime is 111121200000617. The reversal of 111121200000611 is 116000002121111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111121200000611 - 2² = 111121200000607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111121200000611.

It is not a weakly prime, because it can be changed into another prime (111121200000617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560600000305 + 55560600000306.

It is an arithmetic number, because the mean of its divisors is an integer number (55560600000306).

Almost surely, 2^{111121200000611} is an apocalyptic number.

111121200000611 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121200000611 is an equidigital number, since it uses as much as digits as its factorization.

111121200000611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 111121200000611 its reverse (116000002121111), we get a palindrome (227121202121722).

The spelling of 111121200000611 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred million, six hundred eleven", and thus it is an aban number.