12397319282 has 4 divisors (see below), whose sum is σ = 18595978926. Its totient is φ = 6198659640.

The previous prime is 12397319273. The next prime is 12397319287. The reversal of 12397319282 is 28291379321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8873828401 + 3523490881 = 94201^2 + 59359^2 .

It is not an unprimeable number, because it can be changed into a prime (12397319287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3099329819 + ... + 3099329822.

Almost surely, 2^12397319282 is an apocalyptic number.

12397319282 is a deficient number, since it is larger than the sum of its proper divisors (6198659644).

12397319282 is an equidigital number, since it uses as much as digits as its factorization.

12397319282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6198659643.

The product of its digits is 326592, while the sum is 47.

The spelling of 12397319282 in words is "twelve billion, three hundred ninety-seven million, three hundred nineteen thousand, two hundred eighty-two".