12127747523 has 2 divisors, whose sum is σ = 12127747524. Its totient is φ = 12127747522.

The previous prime is 12127747493. The next prime is 12127747531. The reversal of 12127747523 is 32574772121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12127747523 is a prime.

It is not a weakly prime, because it can be changed into another prime (12127747573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063873761 + 6063873762.

It is an arithmetic number, because the mean of its divisors is an integer number (6063873762).

Almost surely, 2^12127747523 is an apocalyptic number.

12127747523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12127747523 is an equidigital number, since it uses as much as digits as its factorization.

12127747523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164640, while the sum is 41.

The spelling of 12127747523 in words is "twelve billion, one hundred twenty-seven million, seven hundred forty-seven thousand, five hundred twenty-three".