1224243023 has 4 divisors (see below), whose sum is σ = 1224588288. Its totient is φ = 1223897760.

The previous prime is 1224243019. The next prime is 1224243029. The reversal of 1224243023 is 3203424221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224243023 - 2² = 1224243019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224243023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224243029) 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, 167258 + ... + 174423.

It is an arithmetic number, because the mean of its divisors is an integer number (306147072).

Almost surely, 2^1224243023 is an apocalyptic number.

1224243023 is a deficient number, since it is larger than the sum of its proper divisors (345265).

1224243023 is an equidigital number, since it uses as much as digits as its factorization.

1224243023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345264.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1224243023 is about 34989.1843717455. The cubic root of 1224243023 is about 1069.7670389854.

Adding to 1224243023 its reverse (3203424221), we get a palindrome (4427667244).

The spelling of 1224243023 in words is "one billion, two hundred twenty-four million, two hundred forty-three thousand, twenty-three".