1244120431 has 2 divisors, whose sum is σ = 1244120432. Its totient is φ = 1244120430.

The previous prime is 1244120429. The next prime is 1244120443. The reversal of 1244120431 is 1340214421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1244120431 - 2¹ = 1244120429 is a prime.

It is a super-2 number, since 2×1244120431² = 3095671293663251522, which contains 22 as substring.

Together with 1244120429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244120491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622060215 + 622060216.

It is an arithmetic number, because the mean of its divisors is an integer number (622060216).

Almost surely, 2^1244120431 is an apocalyptic number.

1244120431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244120431 is an equidigital number, since it uses as much as digits as its factorization.

1244120431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1244120431 is about 35272.0913896525. The cubic root of 1244120431 is about 1075.5257370014.

Adding to 1244120431 its reverse (1340214421), we get a palindrome (2584334852).

The spelling of 1244120431 in words is "one billion, two hundred forty-four million, one hundred twenty thousand, four hundred thirty-one".