12321001042 has 16 divisors (see below), whose sum is σ = 21213956160. Its totient is φ = 5257369008.

The previous prime is 12321001027. The next prime is 12321001051. The reversal of 12321001042 is 24010012321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918348 + ... + 1924759.

It is an arithmetic number, because the mean of its divisors is an integer number (1325872260).

Almost surely, 2^12321001042 is an apocalyptic number.

12321001042 is a deficient number, since it is larger than the sum of its proper divisors (8892955118).

12321001042 is a wasteful number, since it uses less digits than its factorization.

12321001042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843345.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12321001042 its reverse (24010012321), we get a palindrome (36331013363).

The spelling of 12321001042 in words is "twelve billion, three hundred twenty-one million, one thousand, forty-two".