2423123421 has 8 divisors (see below), whose sum is σ = 3262820064. Its totient is φ = 1599421200.

The previous prime is 2423123389. The next prime is 2423123431. The reversal of 2423123421 is 1243213242.

It is a happy number.

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

It is not a de Polignac number, because 2423123421 - 2⁵ = 2423123389 is a prime.

It is a super-2 number, since 2×2423123421² = 11743054226797486482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2423123391 and 2423123400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2423123431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3998251 + ... + 3998856.

It is an arithmetic number, because the mean of its divisors is an integer number (407852508).

Almost surely, 2^2423123421 is an apocalyptic number.

It is an amenable number.

2423123421 is a deficient number, since it is larger than the sum of its proper divisors (839696643).

2423123421 is a wasteful number, since it uses less digits than its factorization.

2423123421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7997211.

The product of its digits is 2304, while the sum is 24.

The square root of 2423123421 is about 49225.2315484651. The cubic root of 2423123421 is about 1343.1520474794.

Adding to 2423123421 its reverse (1243213242), we get a palindrome (3666336663).

The spelling of 2423123421 in words is "two billion, four hundred twenty-three million, one hundred twenty-three thousand, four hundred twenty-one".