12432215215 has 16 divisors (see below), whose sum is σ = 17054641728. Its totient is φ = 8522574336.

The previous prime is 12432215207. The next prime is 12432215219. The reversal of 12432215215 is 51251223421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12432215215 - 2³ = 12432215207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432215219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83079 + ... + 178231.

It is an arithmetic number, because the mean of its divisors is an integer number (1065915108).

Almost surely, 2^12432215215 is an apocalyptic number.

12432215215 is a deficient number, since it is larger than the sum of its proper divisors (4622426513).

12432215215 is an equidigital number, since it uses as much as digits as its factorization.

12432215215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98898.

The product of its digits is 4800, while the sum is 28.

Adding to 12432215215 its reverse (51251223421), we get a palindrome (63683438636).

The spelling of 12432215215 in words is "twelve billion, four hundred thirty-two million, two hundred fifteen thousand, two hundred fifteen".