12321297057 has 8 divisors (see below), whose sum is σ = 16597761376. Its totient is φ = 8129515392.

The previous prime is 12321297031. The next prime is 12321297071. The reversal of 12321297057 is 75079212321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12321297057 - 2⁷ = 12321296929 is a prime.

It is a super-2 number, since 2×12321297057² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321297007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21170323 + ... + 21170904.

It is an arithmetic number, because the mean of its divisors is an integer number (2074720172).

Almost surely, 2^12321297057 is an apocalyptic number.

It is an amenable number.

12321297057 is a deficient number, since it is larger than the sum of its proper divisors (4276464319).

12321297057 is an equidigital number, since it uses as much as digits as its factorization.

12321297057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42341327.

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 12321297057 in words is "twelve billion, three hundred twenty-one million, two hundred ninety-seven thousand, fifty-seven".