12161352305 has 16 divisors (see below), whose sum is σ = 15467345280. Its totient is φ = 9147731712.

The previous prime is 12161352209. The next prime is 12161352377. The reversal of 12161352305 is 50325316121.

It is a cyclic number.

It is not a de Polignac number, because 12161352305 - 2¹⁶ = 12161286769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16412 + ... + 156818.

It is an arithmetic number, because the mean of its divisors is an integer number (966709080).

Almost surely, 2^12161352305 is an apocalyptic number.

It is an amenable number.

12161352305 is a deficient number, since it is larger than the sum of its proper divisors (3305992975).

12161352305 is a wasteful number, since it uses less digits than its factorization.

12161352305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141448.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 12161352305 its reverse (50325316121), we get a palindrome (62486668426).

The spelling of 12161352305 in words is "twelve billion, one hundred sixty-one million, three hundred fifty-two thousand, three hundred five".