12173353427 has 2 divisors, whose sum is σ = 12173353428. Its totient is φ = 12173353426.

The previous prime is 12173353417. The next prime is 12173353441. The reversal of 12173353427 is 72435337121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12173353427 - 2⁴ = 12173353411 is a prime.

It is not a weakly prime, because it can be changed into another prime (12173353417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6086676713 + 6086676714.

It is an arithmetic number, because the mean of its divisors is an integer number (6086676714).

Almost surely, 2^12173353427 is an apocalyptic number.

12173353427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12173353427 is an equidigital number, since it uses as much as digits as its factorization.

12173353427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 38.

The spelling of 12173353427 in words is "twelve billion, one hundred seventy-three million, three hundred fifty-three thousand, four hundred twenty-seven".