12001320615 has 8 divisors (see below), whose sum is σ = 19202113008. Its totient is φ = 6400704320.

The previous prime is 12001320599. The next prime is 12001320623. The reversal of 12001320615 is 51602310021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12001320615 - 2⁴ = 12001320599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001320591 and 12001320600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400044006 + ... + 400044035.

It is an arithmetic number, because the mean of its divisors is an integer number (2400264126).

Almost surely, 2^12001320615 is an apocalyptic number.

12001320615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12001320615 is a deficient number, since it is larger than the sum of its proper divisors (7200792393).

12001320615 is an equidigital number, since it uses as much as digits as its factorization.

12001320615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800088049.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 12001320615 its reverse (51602310021), we get a palindrome (63603630636).

The spelling of 12001320615 in words is "twelve billion, one million, three hundred twenty thousand, six hundred fifteen".