12015121013113 has 8 divisors (see below), whose sum is σ = 12022710133896. Its totient is φ = 12007532476800.

The previous prime is 12015121013111. The next prime is 12015121013123. The reversal of 12015121013113 is 31131012151021.

It can be written as a sum of positive squares in 4 ways, for example, as 8397870776464 + 3617250236649 = 2897908^2 + 1901907^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12015121013113 - 2¹ = 12015121013111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12015121013111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45445443 + ... + 45709063.

It is an arithmetic number, because the mean of its divisors is an integer number (1502838766737).

Almost surely, 2^{12015121013113} is an apocalyptic number.

It is an amenable number.

12015121013113 is a deficient number, since it is larger than the sum of its proper divisors (7589120783).

12015121013113 is a wasteful number, since it uses less digits than its factorization.

12015121013113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292235.

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 12015121013113 its reverse (31131012151021), we get a palindrome (43146133164134).

The spelling of 12015121013113 in words is "twelve trillion, fifteen billion, one hundred twenty-one million, thirteen thousand, one hundred thirteen".