1244204231939 has 16 divisors (see below), whose sum is σ = 1299649760640. Its totient is φ = 1190343855360.

The previous prime is 1244204231923. The next prime is 1244204231953. The reversal of 1244204231939 is 9391324024421.

It is a cyclic number.

It is not a de Polignac number, because 1244204231939 - 2⁴ = 1244204231923 is a prime.

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 1244204231939.

It is not an unprimeable number, because it can be changed into a prime (1244204233939) 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, 1567982 + ... + 2224179.

It is an arithmetic number, because the mean of its divisors is an integer number (81228110040).

Almost surely, 2^{1244204231939} is an apocalyptic number.

1244204231939 is a deficient number, since it is larger than the sum of its proper divisors (55445528701).

1244204231939 is an equidigital number, since it uses as much as digits as its factorization.

1244204231939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792370.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 1244204231939 in words is "one trillion, two hundred forty-four billion, two hundred four million, two hundred thirty-one thousand, nine hundred thirty-nine".