123044421 has 8 divisors (see below), whose sum is σ = 164976480. Its totient is φ = 81570992.

The previous prime is 123044417. The next prime is 123044443. The reversal of 123044421 is 124440321.

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

It is a cyclic number.

It is not a de Polignac number, because 123044421 - 2² = 123044417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123044401) 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, 114030 + ... + 115103.

It is an arithmetic number, because the mean of its divisors is an integer number (20622060).

Almost surely, 2^123044421 is an apocalyptic number.

It is an amenable number.

123044421 is a deficient number, since it is larger than the sum of its proper divisors (41932059).

123044421 is a wasteful number, since it uses less digits than its factorization.

123044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229315.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 123044421 is about 11092.5389789714. The cubic root of 123044421 is about 497.3788444317.

Adding to 123044421 its reverse (124440321), we get a palindrome (247484742).

The spelling of 123044421 in words is "one hundred twenty-three million, forty-four thousand, four hundred twenty-one".