12308005693 has 2 divisors, whose sum is σ = 12308005694. Its totient is φ = 12308005692.

The previous prime is 12308005639. The next prime is 12308005727. The reversal of 12308005693 is 39650080321.

Together with previous prime (12308005639) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8513199289 + 3794806404 = 92267^2 + 61602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12308005693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12308005393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6154002846 + 6154002847.

It is an arithmetic number, because the mean of its divisors is an integer number (6154002847).

Almost surely, 2^12308005693 is an apocalyptic number.

It is an amenable number.

12308005693 is a deficient number, since it is larger than the sum of its proper divisors (1).

12308005693 is an equidigital number, since it uses as much as digits as its factorization.

12308005693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 12308005693 in words is "twelve billion, three hundred eight million, five thousand, six hundred ninety-three".