12115351123215 has 8 divisors (see below), whose sum is σ = 19384561797168. Its totient is φ = 6461520599040.

The previous prime is 12115351123081. The next prime is 12115351123277. The reversal of 12115351123215 is 51232115351121.

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

It is not a de Polignac number, because 12115351123215 - 2²⁷ = 12115216905487 is a prime.

It is a super-2 number, since 2×12115351123215² (a number of 27 digits) contains 22 as substring.

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, 403845037426 + ... + 403845037455.

It is an arithmetic number, because the mean of its divisors is an integer number (2423070224646).

Almost surely, 2^{12115351123215} is an apocalyptic number.

12115351123215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12115351123215 is a deficient number, since it is larger than the sum of its proper divisors (7269210673953).

12115351123215 is an equidigital number, since it uses as much as digits as its factorization.

12115351123215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807690074889.

The product of its digits is 9000, while the sum is 33.

Adding to 12115351123215 its reverse (51232115351121), we get a palindrome (63347466474336).

The spelling of 12115351123215 in words is "twelve trillion, one hundred fifteen billion, three hundred fifty-one million, one hundred twenty-three thousand, two hundred fifteen".