1200031111079 has 2 divisors, whose sum is σ = 1200031111080. Its totient is φ = 1200031111078.

The previous prime is 1200031111067. The next prime is 1200031111121. The reversal of 1200031111079 is 9701111300021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200031111079 - 2³² = 1195736143783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200031111009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600015555539 + 600015555540.

It is an arithmetic number, because the mean of its divisors is an integer number (600015555540).

Almost surely, 2^{1200031111079} is an apocalyptic number.

1200031111079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200031111079 is an equidigital number, since it uses as much as digits as its factorization.

1200031111079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 26.

The spelling of 1200031111079 in words is "one trillion, two hundred billion, thirty-one million, one hundred eleven thousand, seventy-nine".