12420303331215 has 32 divisors (see below), whose sum is σ = 21418637345280. Its totient is φ = 6109611071616.

The previous prime is 12420303331201. The next prime is 12420303331237. The reversal of 12420303331215 is 51213330302421.

It is not a de Polignac number, because 12420303331215 - 2¹⁸ = 12420303069071 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, 25801525 + ... + 26278494.

It is an arithmetic number, because the mean of its divisors is an integer number (669332417040).

Almost surely, 2^{12420303331215} is an apocalyptic number.

12420303331215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12420303331215 is a deficient number, since it is larger than the sum of its proper divisors (8998334014065).

12420303331215 is a wasteful number, since it uses less digits than its factorization.

12420303331215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52081263.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 12420303331215 its reverse (51213330302421), we get a palindrome (63633633633636).

The spelling of 12420303331215 in words is "twelve trillion, four hundred twenty billion, three hundred three million, three hundred thirty-one thousand, two hundred fifteen".