123044242243 has 8 divisors (see below), whose sum is σ = 132842965808. Its totient is φ = 113293201824.

The previous prime is 123044242219. The next prime is 123044242283. The reversal of 123044242243 is 342242440321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123044242243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123044242213) 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, 11915421 + ... + 11925742.

It is an arithmetic number, because the mean of its divisors is an integer number (16605370726).

Almost surely, 2^123044242243 is an apocalyptic number.

123044242243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123044242243 is a deficient number, since it is larger than the sum of its proper divisors (9798723565).

123044242243 is a wasteful number, since it uses less digits than its factorization.

123044242243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23841573.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 123044242243 its reverse (342242440321), we get a palindrome (465286682564).

The spelling of 123044242243 in words is "one hundred twenty-three billion, forty-four million, two hundred forty-two thousand, two hundred forty-three".