12421423415 has 8 divisors (see below), whose sum is σ = 14907237408. Its totient is φ = 9936119200.

The previous prime is 12421423409. The next prime is 12421423453. The reversal of 12421423415 is 51432412421.

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 12421423415 - 2¹⁸ = 12421161271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71612 + ... + 173121.

It is an arithmetic number, because the mean of its divisors is an integer number (1863404676).

Almost surely, 2^12421423415 is an apocalyptic number.

12421423415 is a deficient number, since it is larger than the sum of its proper divisors (2485813993).

12421423415 is a wasteful number, since it uses less digits than its factorization.

12421423415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254889.

The product of its digits is 7680, while the sum is 29.

Adding to 12421423415 its reverse (51432412421), we get a palindrome (63853835836).

The spelling of 12421423415 in words is "twelve billion, four hundred twenty-one million, four hundred twenty-three thousand, four hundred fifteen".