12185354071 has 8 divisors (see below), whose sum is σ = 13294030464. Its totient is φ = 11076830520.

The previous prime is 12185354021. The next prime is 12185354089. The reversal of 12185354071 is 17045358121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12185354071 - 2³³ = 3595419479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12185354071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12185354021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185436 + ... + 242398.

It is an arithmetic number, because the mean of its divisors is an integer number (1661753808).

Almost surely, 2^12185354071 is an apocalyptic number.

12185354071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12185354071 is a deficient number, since it is larger than the sum of its proper divisors (1108676393).

12185354071 is a wasteful number, since it uses less digits than its factorization.

12185354071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76421.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 12185354071 in words is "twelve billion, one hundred eighty-five million, three hundred fifty-four thousand, seventy-one".