12010021231321 has 16 divisors (see below), whose sum is σ = 12482514380160. Its totient is φ = 11541496982400.

The previous prime is 12010021231277. The next prime is 12010021231349. The reversal of 12010021231321 is 12313212001021.

12010021231321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12010021231321 - 2¹⁷ = 12010021100249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12010021235321) 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, 7864021 + ... + 9266221.

It is an arithmetic number, because the mean of its divisors is an integer number (780157148760).

Almost surely, 2^{12010021231321} is an apocalyptic number.

It is an amenable number.

12010021231321 is a deficient number, since it is larger than the sum of its proper divisors (472493148839).

12010021231321 is a wasteful number, since it uses less digits than its factorization.

12010021231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403616.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12010021231321 its reverse (12313212001021), we get a palindrome (24323233232342).

The spelling of 12010021231321 in words is "twelve trillion, ten billion, twenty-one million, two hundred thirty-one thousand, three hundred twenty-one".