1243230144099 has 16 divisors (see below), whose sum is σ = 1755600959520. Its totient is φ = 779864852480.

The previous prime is 1243230144077. The next prime is 1243230144137. The reversal of 1243230144099 is 9904410323421.

It is a cyclic number.

It is not a de Polignac number, because 1243230144099 - 2⁹ = 1243230143587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1243230144099.

It is not an unprimeable number, because it can be changed into a prime (1243230144799) 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, 2942634 + ... + 3338495.

It is an arithmetic number, because the mean of its divisors is an integer number (109725059970).

Almost surely, 2^{1243230144099} is an apocalyptic number.

1243230144099 is a deficient number, since it is larger than the sum of its proper divisors (512370815421).

1243230144099 is a wasteful number, since it uses less digits than its factorization.

1243230144099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285030.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 1243230144099 in words is "one trillion, two hundred forty-three billion, two hundred thirty million, one hundred forty-four thousand, ninety-nine".