123444242243 has 8 divisors (see below), whose sum is σ = 141795273312. Its totient is φ = 105272246016.

The previous prime is 123444242237. The next prime is 123444242281. The reversal of 123444242243 is 342242444321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123444242243 - 2¹⁶ = 123444176707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123444242143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44757230 + ... + 44759987.

It is an arithmetic number, because the mean of its divisors is an integer number (17724409164).

Almost surely, 2^123444242243 is an apocalyptic number.

123444242243 is a deficient number, since it is larger than the sum of its proper divisors (18351031069).

123444242243 is an equidigital number, since it uses as much as digits as its factorization.

123444242243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89517421.

The product of its digits is 147456, while the sum is 35.

Adding to 123444242243 its reverse (342242444321), we get a palindrome (465686686564).

The spelling of 123444242243 in words is "one hundred twenty-three billion, four hundred forty-four million, two hundred forty-two thousand, two hundred forty-three".