12031013012321 has 8 divisors (see below), whose sum is σ = 12090506784384. Its totient is φ = 11971576203120.

The previous prime is 12031013012309. The next prime is 12031013012323. The reversal of 12031013012321 is 12321031013021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12031013012321 - 2⁶ = 12031013012257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031013012293 and 12031013012302.

It is not an unprimeable number, because it can be changed into a prime (12031013012323) 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, 13817225 + ... + 14662118.

It is an arithmetic number, because the mean of its divisors is an integer number (1511313348048).

Almost surely, 2^{12031013012321} is an apocalyptic number.

It is an amenable number.

12031013012321 is a deficient number, since it is larger than the sum of its proper divisors (59493772063).

12031013012321 is a wasteful number, since it uses less digits than its factorization.

12031013012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28481431.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12031013012321 its reverse (12321031013021), we get a palindrome (24352044025342).

The spelling of 12031013012321 in words is "twelve trillion, thirty-one billion, thirteen million, twelve thousand, three hundred twenty-one".