1244242403 has 2 divisors, whose sum is σ = 1244242404. Its totient is φ = 1244242402.

The previous prime is 1244242333. The next prime is 1244242409. The reversal of 1244242403 is 3042424421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1244242403 - 2¹⁰ = 1244241379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244242409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622121201 + 622121202.

It is an arithmetic number, because the mean of its divisors is an integer number (622121202).

Almost surely, 2^1244242403 is an apocalyptic number.

1244242403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244242403 is an equidigital number, since it uses as much as digits as its factorization.

1244242403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1244242403 is about 35273.8203629831. The cubic root of 1244242403 is about 1075.5608835823.

Adding to 1244242403 its reverse (3042424421), we get a palindrome (4286666824).

It can be divided in two parts, 12442 and 42403, that added together give a palindrome (54845).

The spelling of 1244242403 in words is "one billion, two hundred forty-four million, two hundred forty-two thousand, four hundred three".