27316356121 has 4 divisors (see below), whose sum is σ = 27333789952. Its totient is φ = 27298922292.

The previous prime is 27316356097. The next prime is 27316356127. The reversal of 27316356121 is 12165361372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27316356121 - 2¹¹ = 27316354073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27316356127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8714565 + ... + 8717698.

It is an arithmetic number, because the mean of its divisors is an integer number (6833447488).

Almost surely, 2^27316356121 is an apocalyptic number.

It is an amenable number.

27316356121 is a deficient number, since it is larger than the sum of its proper divisors (17433831).

27316356121 is a wasteful number, since it uses less digits than its factorization.

27316356121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17433830.

The product of its digits is 45360, while the sum is 37.

The spelling of 27316356121 in words is "twenty-seven billion, three hundred sixteen million, three hundred fifty-six thousand, one hundred twenty-one".