16281071112121 has 16 divisors (see below), whose sum is σ = 17024674867200. Its totient is φ = 15554475206928.

The previous prime is 16281071112109. The next prime is 16281071112167. The reversal of 16281071112121 is 12121117018261.

It is a cyclic number.

It is not a de Polignac number, because 16281071112121 - 2¹⁵ = 16281071079353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16281071412121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784060 + ... + 5759938.

It is an arithmetic number, because the mean of its divisors is an integer number (1064042179200).

Almost surely, 2^{16281071112121} is an apocalyptic number.

It is an amenable number.

16281071112121 is a deficient number, since it is larger than the sum of its proper divisors (743603755079).

16281071112121 is a wasteful number, since it uses less digits than its factorization.

16281071112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977588.

The product of its (nonzero) digits is 2688, while the sum is 34.

The spelling of 16281071112121 in words is "sixteen trillion, two hundred eighty-one billion, seventy-one million, one hundred twelve thousand, one hundred twenty-one".