1244023420199 has 64 divisors (see below), whose sum is σ = 1552220651520. Its totient is φ = 972694241280.

The previous prime is 1244023420151. The next prime is 1244023420201. The reversal of 1244023420199 is 9910243204421.

It is a cyclic number.

It is not a de Polignac number, because 1244023420199 - 2²⁸ = 1243754984743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244023420109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 555614522 + ... + 555616760.

It is an arithmetic number, because the mean of its divisors is an integer number (24253447680).

Almost surely, 2^{1244023420199} is an apocalyptic number.

1244023420199 is a deficient number, since it is larger than the sum of its proper divisors (308197231321).

1244023420199 is a wasteful number, since it uses less digits than its factorization.

1244023420199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 1244023420199 in words is "one trillion, two hundred forty-four billion, twenty-three million, four hundred twenty thousand, one hundred ninety-nine".