12321212330031 has 16 divisors (see below), whose sum is σ = 18189252398208. Its totient is φ = 7355947658400.

The previous prime is 12321212329913. The next prime is 12321212330069. The reversal of 12321212330031 is 13003321212321.

It is not a de Polignac number, because 12321212330031 - 2¹⁸ = 12321212067887 is a prime.

It is a super-2 number, since 2×12321212330031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12321212329983 and 12321212330010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321212330071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2786341600 + ... + 2786346021.

It is an arithmetic number, because the mean of its divisors is an integer number (1136828274888).

Almost surely, 2^{12321212330031} is an apocalyptic number.

12321212330031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12321212330031 is a deficient number, since it is larger than the sum of its proper divisors (5868040068177).

12321212330031 is a wasteful number, since it uses less digits than its factorization.

12321212330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572687702.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12321212330031 its reverse (13003321212321), we get a palindrome (25324533542352).

The spelling of 12321212330031 in words is "twelve trillion, three hundred twenty-one billion, two hundred twelve million, three hundred thirty thousand, thirty-one".