1242233443 has 4 divisors (see below), whose sum is σ = 1355163768. Its totient is φ = 1129303120.

The previous prime is 1242233429. The next prime is 1242233459. The reversal of 1242233443 is 3443322421.

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

It is not a de Polignac number, because 1242233443 - 2²⁵ = 1208679011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242263443) 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, 56465146 + ... + 56465167.

It is an arithmetic number, because the mean of its divisors is an integer number (338790942).

Almost surely, 2^1242233443 is an apocalyptic number.

1242233443 is a deficient number, since it is larger than the sum of its proper divisors (112930325).

1242233443 is a wasteful number, since it uses less digits than its factorization.

1242233443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112930324.

The product of its digits is 13824, while the sum is 28.

The square root of 1242233443 is about 35245.3322157701. The cubic root of 1242233443 is about 1074.9817030958.

Adding to 1242233443 its reverse (3443322421), we get a palindrome (4685555864).

It can be divided in two parts, 1242233 and 443, that added together give a triangular number (1242676 = T₁₅₇₆).

The spelling of 1242233443 in words is "one billion, two hundred forty-two million, two hundred thirty-three thousand, four hundred forty-three".