123044034143421 has 24 divisors (see below), whose sum is σ = 177753116641464. Its totient is φ = 82018813086720.

The previous prime is 123044034143363. The next prime is 123044034143431. The reversal of 123044034143421 is 124341430440321.

123044034143421 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 440 + 34 + 143 + 42 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9543243137796 + 113500791005625 = 3089214^2 + 10653675^2 .

It is not a de Polignac number, because 123044034143421 - 2⁶ = 123044034143357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123044034143431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3760842955 + ... + 3760875671.

It is an arithmetic number, because the mean of its divisors is an integer number (7406379860061).

Almost surely, 2^{123044034143421} is an apocalyptic number.

It is an amenable number.

123044034143421 is a deficient number, since it is larger than the sum of its proper divisors (54709082498043).

123044034143421 is a wasteful number, since it uses less digits than its factorization.

123044034143421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73661 (or 73658 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 123044034143421 its reverse (124341430440321), we get a palindrome (247385464583742).

The spelling of 123044034143421 in words is "one hundred twenty-three trillion, forty-four billion, thirty-four million, one hundred forty-three thousand, four hundred twenty-one".