12412421391 has 8 divisors (see below), whose sum is σ = 16550576640. Its totient is φ = 8274606872.

The previous prime is 12412421389. The next prime is 12412421447. The reversal of 12412421391 is 19312421421.

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 12412421391 - 2¹ = 12412421389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12412421291) 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, 17506 + ... + 158528.

It is an arithmetic number, because the mean of its divisors is an integer number (2068822080).

Almost surely, 2^12412421391 is an apocalyptic number.

12412421391 is a deficient number, since it is larger than the sum of its proper divisors (4138155249).

12412421391 is a wasteful number, since it uses less digits than its factorization.

12412421391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170365.

The product of its digits is 3456, while the sum is 30.

Adding to 12412421391 its sum of digits (30), we get a palindrome (12412421421).

The spelling of 12412421391 in words is "twelve billion, four hundred twelve million, four hundred twenty-one thousand, three hundred ninety-one".