12312432215 has 32 divisors (see below), whose sum is σ = 15374370240. Its totient is φ = 9460813824.

The previous prime is 12312432179. The next prime is 12312432271. The reversal of 12312432215 is 51223421321.

It is a cyclic number.

It is not a de Polignac number, because 12312432215 - 2¹⁰ = 12312431191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2173667 + ... + 2179323.

It is an arithmetic number, because the mean of its divisors is an integer number (480449070).

Almost surely, 2^12312432215 is an apocalyptic number.

12312432215 is a deficient number, since it is larger than the sum of its proper divisors (3061938025).

12312432215 is an equidigital number, since it uses as much as digits as its factorization.

12312432215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891.

The product of its digits is 2880, while the sum is 26.

Adding to 12312432215 its reverse (51223421321), we get a palindrome (63535853536).

The spelling of 12312432215 in words is "twelve billion, three hundred twelve million, four hundred thirty-two thousand, two hundred fifteen".