12161727283 has 4 divisors (see below), whose sum is σ = 12224741608. Its totient is φ = 12098712960.

The previous prime is 12161727251. The next prime is 12161727307. The reversal of 12161727283 is 38272716121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12161727283 - 2⁵ = 12161727251 is a prime.

It is a super-2 number, since 2×12161727283² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12161767283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31506873 + ... + 31507258.

It is an arithmetic number, because the mean of its divisors is an integer number (3056185402).

Almost surely, 2^12161727283 is an apocalyptic number.

12161727283 is a deficient number, since it is larger than the sum of its proper divisors (63014325).

12161727283 is an equidigital number, since it uses as much as digits as its factorization.

12161727283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63014324.

The product of its digits is 56448, while the sum is 40.

The spelling of 12161727283 in words is "twelve billion, one hundred sixty-one million, seven hundred twenty-seven thousand, two hundred eighty-three".