12321013321042 has 16 divisors (see below), whose sum is σ = 19636046814240. Its totient is φ = 5781724891488.

The previous prime is 12321013321021. The next prime is 12321013321049. The reversal of 12321013321042 is 24012331012321.

It is a junction number, because it is equal to n+sod(n) for n = 12321013320998 and 12321013321016.

It is not an unprimeable number, because it can be changed into a prime (12321013321049) 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, 1515123003 + ... + 1515131134.

It is an arithmetic number, because the mean of its divisors is an integer number (1227252925890).

Almost surely, 2^{12321013321042} is an apocalyptic number.

12321013321042 is a deficient number, since it is larger than the sum of its proper divisors (7315033493198).

12321013321042 is a wasteful number, since it uses less digits than its factorization.

12321013321042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030254265.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12321013321042 its reverse (24012331012321), we get a palindrome (36333344333363).

The spelling of 12321013321042 in words is "twelve trillion, three hundred twenty-one billion, thirteen million, three hundred twenty-one thousand, forty-two".