1200020113267 has 2 divisors, whose sum is σ = 1200020113268. Its totient is φ = 1200020113266.

The previous prime is 1200020113219. The next prime is 1200020113273. The reversal of 1200020113267 is 7623110200021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200020113267 - 2³¹ = 1197872629619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200020113217) 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, 600010056633 + 600010056634.

It is an arithmetic number, because the mean of its divisors is an integer number (600010056634).

Almost surely, 2^{1200020113267} is an apocalyptic number.

1200020113267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200020113267 is an equidigital number, since it uses as much as digits as its factorization.

1200020113267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 1200020113267 its reverse (7623110200021), we get a palindrome (8823130313288).

The spelling of 1200020113267 in words is "one trillion, two hundred billion, twenty million, one hundred thirteen thousand, two hundred sixty-seven".