1280803135199 has 8 divisors (see below), whose sum is σ = 1465330571808. Its totient is φ = 1096664588640.

The previous prime is 1280803135193. The next prime is 1280803135231. The reversal of 1280803135199 is 9915313080821.

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-1280803135199 is a prime.

It is a super-2 number, since 2×1280803135199² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280803135193) 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, 97215452 + ... + 97228625.

It is an arithmetic number, because the mean of its divisors is an integer number (183166321476).

Almost surely, 2^{1280803135199} is an apocalyptic number.

1280803135199 is a deficient number, since it is larger than the sum of its proper divisors (184527436609).

1280803135199 is an equidigital number, since it uses as much as digits as its factorization.

1280803135199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194445025.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 1280803135199 in words is "one trillion, two hundred eighty billion, eight hundred three million, one hundred thirty-five thousand, one hundred ninety-nine".