11112121111907 has 2 divisors, whose sum is σ = 11112121111908. Its totient is φ = 11112121111906.

The previous prime is 11112121111873. The next prime is 11112121111921. The reversal of 11112121111907 is 70911112121111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11112121111907 - 2⁶ = 11112121111843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11112121111907.

It is not a weakly prime, because it can be changed into another prime (11112121111967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556060555953 + 5556060555954.

It is an arithmetic number, because the mean of its divisors is an integer number (5556060555954).

Almost surely, 2^{11112121111907} is an apocalyptic number.

11112121111907 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112121111907 is an equidigital number, since it uses as much as digits as its factorization.

11112121111907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 29.

The spelling of 11112121111907 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, nine hundred seven".