12423252215 has 16 divisors (see below), whose sum is σ = 16366764960. Its totient is φ = 8977537920.

The previous prime is 12423252187. The next prime is 12423252221. The reversal of 12423252215 is 51225232421.

It is a happy number.

It is not a de Polignac number, because 12423252215 - 2¹² = 12423248119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710720 + ... + 727989.

It is an arithmetic number, because the mean of its divisors is an integer number (1022922810).

Almost surely, 2^12423252215 is an apocalyptic number.

12423252215 is a deficient number, since it is larger than the sum of its proper divisors (3943512745).

12423252215 is a wasteful number, since it uses less digits than its factorization.

12423252215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438882.

The product of its digits is 9600, while the sum is 29.

Adding to 12423252215 its reverse (51225232421), we get a palindrome (63648484636).

The spelling of 12423252215 in words is "twelve billion, four hundred twenty-three million, two hundred fifty-two thousand, two hundred fifteen".