123044404231 has 4 divisors (see below), whose sum is σ = 140622176272. Its totient is φ = 105466632192.

The previous prime is 123044404213. The next prime is 123044404247. The reversal of 123044404231 is 132404440321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132404440321 = 39317 ⋅3367613.

It is a cyclic number.

It is not a de Polignac number, because 123044404231 - 2¹³ = 123044396039 is a prime.

It is a super-2 number, since 2×123044404231² (a number of 23 digits) contains 22 as substring.

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 123044404231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123044404631) 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, 8788886010 + ... + 8788886023.

It is an arithmetic number, because the mean of its divisors is an integer number (35155544068).

Almost surely, 2^123044404231 is an apocalyptic number.

123044404231 is a deficient number, since it is larger than the sum of its proper divisors (17577772041).

123044404231 is an equidigital number, since it uses as much as digits as its factorization.

123044404231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17577772040.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 123044404231 its reverse (132404440321), we get a palindrome (255448844552).

The spelling of 123044404231 in words is "one hundred twenty-three billion, forty-four million, four hundred four thousand, two hundred thirty-one".