1200133440191 has 16 divisors (see below), whose sum is σ = 1395156691200. Its totient is φ = 1011012306048.

The previous prime is 1200133440139. The next prime is 1200133440251. The reversal of 1200133440191 is 1910443310021.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200133440191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200133440391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424720 + ... + 2104778.

It is an arithmetic number, because the mean of its divisors is an integer number (87197293200).

Almost surely, 2^{1200133440191} is an apocalyptic number.

1200133440191 is a deficient number, since it is larger than the sum of its proper divisors (195023251009).

1200133440191 is an equidigital number, since it uses as much as digits as its factorization.

1200133440191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684398.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 1200133440191 in words is "one trillion, two hundred billion, one hundred thirty-three million, four hundred forty thousand, one hundred ninety-one".