12117594061 has 4 divisors (see below), whose sum is σ = 12508484224. Its totient is φ = 11726703900.

The previous prime is 12117594053. The next prime is 12117594119. The reversal of 12117594061 is 16049571121.

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 12117594061 - 2³ = 12117594053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12117594061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117594761) 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, 195445035 + ... + 195445096.

It is an arithmetic number, because the mean of its divisors is an integer number (3127121056).

Almost surely, 2^12117594061 is an apocalyptic number.

It is an amenable number.

12117594061 is a deficient number, since it is larger than the sum of its proper divisors (390890163).

12117594061 is an equidigital number, since it uses as much as digits as its factorization.

12117594061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390890162.

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 12117594061 in words is "twelve billion, one hundred seventeen million, five hundred ninety-four thousand, sixty-one".