12321234568 has 16 divisors (see below), whose sum is σ = 24461274780. Its totient is φ = 5798227968.

The previous prime is 12321234533. The next prime is 12321234571. The reversal of 12321234568 is 86543212321.

It can be written as a sum of positive squares in 2 ways, for example, as 11802215044 + 519019524 = 108638^2 + 22782^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45298521 + ... + 45298792.

Almost surely, 2^12321234568 is an apocalyptic number.

It is an amenable number.

12321234568 is a deficient number, since it is larger than the sum of its proper divisors (12140040212).

12321234568 is a wasteful number, since it uses less digits than its factorization.

12321234568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90597336 (or 90597332 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

Adding to 12321234568 its reverse (86543212321), we get a palindrome (98864446889).

The spelling of 12321234568 in words is "twelve billion, three hundred twenty-one million, two hundred thirty-four thousand, five hundred sixty-eight".