12331221323042 has 16 divisors (see below), whose sum is σ = 18915423328800. Its totient is φ = 6027247832640.

The previous prime is 12331221323041. The next prime is 12331221323051. The reversal of 12331221323042 is 24032312213321.

It is a junction number, because it is equal to n+sod(n) for n = 12331221322996 and 12331221323014.

It is not an unprimeable number, because it can be changed into a prime (12331221323041) 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, 291883559 + ... + 291925802.

It is an arithmetic number, because the mean of its divisors is an integer number (1182213958050).

Almost surely, 2^{12331221323042} is an apocalyptic number.

12331221323042 is a deficient number, since it is larger than the sum of its proper divisors (6584202005758).

12331221323042 is a wasteful number, since it uses less digits than its factorization.

12331221323042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583809601.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 12331221323042 its reverse (24032312213321), we get a palindrome (36363533536363).

The spelling of 12331221323042 in words is "twelve trillion, three hundred thirty-one billion, two hundred twenty-one million, three hundred twenty-three thousand, forty-two".