1200945715199 has 4 divisors (see below), whose sum is σ = 1264153384440. Its totient is φ = 1137738045960.

The previous prime is 1200945715181. The next prime is 1200945715213. The reversal of 1200945715199 is 9915175490021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200945715199 is a prime.

It is a super-2 number, since 2×1200945715199² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200945715199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200965715199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31603834592 + ... + 31603834629.

It is an arithmetic number, because the mean of its divisors is an integer number (316038346110).

Almost surely, 2^{1200945715199} is an apocalyptic number.

1200945715199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1200945715199 is a deficient number, since it is larger than the sum of its proper divisors (63207669241).

1200945715199 is an equidigital number, since it uses as much as digits as its factorization.

1200945715199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63207669240.

The product of its (nonzero) digits is 1020600, while the sum is 53.

The spelling of 1200945715199 in words is "one trillion, two hundred billion, nine hundred forty-five million, seven hundred fifteen thousand, one hundred ninety-nine".