1244431099 has 2 divisors, whose sum is σ = 1244431100. Its totient is φ = 1244431098.

The previous prime is 1244431037. The next prime is 1244431157. The reversal of 1244431099 is 9901344421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1244431099 - 2⁹ = 1244430587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244435099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622215549 + 622215550.

It is an arithmetic number, because the mean of its divisors is an integer number (622215550).

Almost surely, 2^1244431099 is an apocalyptic number.

1244431099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244431099 is an equidigital number, since it uses as much as digits as its factorization.

1244431099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1244431099 is about 35276.4949931254. The cubic root of 1244431099 is about 1075.6152523498.

The spelling of 1244431099 in words is "one billion, two hundred forty-four million, four hundred thirty-one thousand, ninety-nine".