1244013423 has 4 divisors (see below), whose sum is σ = 1658684568. Its totient is φ = 829342280.

The previous prime is 1244013413. The next prime is 1244013439. The reversal of 1244013423 is 3243104421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3243104421 = 3 ⋅1081034807.

It is a cyclic number.

It is not a de Polignac number, because 1244013423 - 2⁶ = 1244013359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1244013393 and 1244013402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244013413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207335568 + ... + 207335573.

It is an arithmetic number, because the mean of its divisors is an integer number (414671142).

Almost surely, 2^1244013423 is an apocalyptic number.

1244013423 is a deficient number, since it is larger than the sum of its proper divisors (414671145).

1244013423 is an equidigital number, since it uses as much as digits as its factorization.

1244013423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414671144.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1244013423 is about 35270.5744637084. The cubic root of 1244013423 is about 1075.4949004481.

Adding to 1244013423 its reverse (3243104421), we get a palindrome (4487117844).

The spelling of 1244013423 in words is "one billion, two hundred forty-four million, thirteen thousand, four hundred twenty-three".