11001200120999 has 8 divisors (see below), whose sum is σ = 12003256612992. Its totient is φ = 9999468194040.

The previous prime is 11001200120971. The next prime is 11001200121071. The reversal of 11001200120999 is 99902100210011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001200120999 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 (11001200122999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81070379 + ... + 81205964.

It is an arithmetic number, because the mean of its divisors is an integer number (1500407076624).

Almost surely, 2^{11001200120999} is an apocalyptic number.

11001200120999 is a deficient number, since it is larger than the sum of its proper divisors (1002056491993).

11001200120999 is a wasteful number, since it uses less digits than its factorization.

11001200120999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162282517.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 11001200120999 in words is "eleven trillion, one billion, two hundred million, one hundred twenty thousand, nine hundred ninety-nine".