12321040469 has 2 divisors, whose sum is σ = 12321040470. Its totient is φ = 12321040468.

The previous prime is 12321040379. The next prime is 12321040483. The reversal of 12321040469 is 96404012321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6717769444 + 5603271025 = 81962^2 + 74855^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321040469 - 2²⁴ = 12304263253 is a prime.

It is a super-2 number, since 2×12321040469² (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 (12321040169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160520234 + 6160520235.

It is an arithmetic number, because the mean of its divisors is an integer number (6160520235).

Almost surely, 2^12321040469 is an apocalyptic number.

It is an amenable number.

12321040469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321040469 is an equidigital number, since it uses as much as digits as its factorization.

12321040469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 12321040469 in words is "twelve billion, three hundred twenty-one million, forty thousand, four hundred sixty-nine".