1244123241 has 4 divisors (see below), whose sum is σ = 1658830992. Its totient is φ = 829415492.

The previous prime is 1244123203. The next prime is 1244123281. The reversal of 1244123241 is 1423214421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1423214421 = 3 ⋅474404807.

It is a cyclic number.

It is not a de Polignac number, because 1244123241 - 2²⁷ = 1109905513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1244123281) 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, 207353871 + ... + 207353876.

It is an arithmetic number, because the mean of its divisors is an integer number (414707748).

Almost surely, 2^1244123241 is an apocalyptic number.

It is an amenable number.

1244123241 is a deficient number, since it is larger than the sum of its proper divisors (414707751).

1244123241 is an equidigital number, since it uses as much as digits as its factorization.

1244123241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414707750.

The product of its digits is 1536, while the sum is 24.

The square root of 1244123241 is about 35272.1312228224. The cubic root of 1244123241 is about 1075.5265467368.

Adding to 1244123241 its reverse (1423214421), we get a palindrome (2667337662).

The spelling of 1244123241 in words is "one billion, two hundred forty-four million, one hundred twenty-three thousand, two hundred forty-one".