12723326069 has 2 divisors, whose sum is σ = 12723326070. Its totient is φ = 12723326068.

The previous prime is 12723326051. The next prime is 12723326081. The reversal of 12723326069 is 96062332721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11731705969 + 991620100 = 108313^2 + 31490^2 .

It is a cyclic number.

It is not a de Polignac number, because 12723326069 - 2³² = 8428358773 is a prime.

It is a super-2 number, since 2×12723326069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12723326009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6361663034 + 6361663035.

It is an arithmetic number, because the mean of its divisors is an integer number (6361663035).

Almost surely, 2^12723326069 is an apocalyptic number.

It is an amenable number.

12723326069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12723326069 is an equidigital number, since it uses as much as digits as its factorization.

12723326069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 12723326069 in words is "twelve billion, seven hundred twenty-three million, three hundred twenty-six thousand, sixty-nine".