1200313312111 has 2 divisors, whose sum is σ = 1200313312112. Its totient is φ = 1200313312110.

The previous prime is 1200313312097. The next prime is 1200313312117. The reversal of 1200313312111 is 1112133130021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200313312111 - 2³³ = 1191723377519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200313312117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600156656055 + 600156656056.

It is an arithmetic number, because the mean of its divisors is an integer number (600156656056).

Almost surely, 2^{1200313312111} is an apocalyptic number.

1200313312111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200313312111 is an equidigital number, since it uses as much as digits as its factorization.

1200313312111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1200313312111 its reverse (1112133130021), we get a palindrome (2312446442132).

The spelling of 1200313312111 in words is "one trillion, two hundred billion, three hundred thirteen million, three hundred twelve thousand, one hundred eleven".