1245110899199 has 4 divisors (see below), whose sum is σ = 1252749616536. Its totient is φ = 1237472181864.

The previous prime is 1245110899177. The next prime is 1245110899223. The reversal of 1245110899199 is 9919980115421.

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

It is a cyclic number.

It is not a de Polignac number, because 1245110899199 - 2²⁴ = 1245094121983 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 (1245110839199) 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, 3819358424 + ... + 3819358749.

It is an arithmetic number, because the mean of its divisors is an integer number (313187404134).

Almost surely, 2^{1245110899199} is an apocalyptic number.

1245110899199 is a deficient number, since it is larger than the sum of its proper divisors (7638717337).

1245110899199 is an equidigital number, since it uses as much as digits as its factorization.

1245110899199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7638717336.

The product of its (nonzero) digits is 2099520, while the sum is 59.

The spelling of 1245110899199 in words is "one trillion, two hundred forty-five billion, one hundred ten million, eight hundred ninety-nine thousand, one hundred ninety-nine".