12451197097 has 4 divisors (see below), whose sum is σ = 13106523280. Its totient is φ = 11795870916.

The previous prime is 12451197071. The next prime is 12451197107. The reversal of 12451197097 is 79079115421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12451197097 - 2¹¹ = 12451195049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12451197037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327663063 + ... + 327663100.

It is an arithmetic number, because the mean of its divisors is an integer number (3276630820).

Almost surely, 2^12451197097 is an apocalyptic number.

It is an amenable number.

12451197097 is a deficient number, since it is larger than the sum of its proper divisors (655326183).

12451197097 is an equidigital number, since it uses as much as digits as its factorization.

12451197097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655326182.

The product of its (nonzero) digits is 158760, while the sum is 46.

The spelling of 12451197097 in words is "twelve billion, four hundred fifty-one million, one hundred ninety-seven thousand, ninety-seven".