12312020132321 has 16 divisors (see below), whose sum is σ = 15161959507968. Its totient is φ = 9735783163200.

The previous prime is 12312020132311. The next prime is 12312020132323. The reversal of 12312020132321 is 12323102021321.

It is a cyclic number.

It is not a de Polignac number, because 12312020132321 - 2⁶ = 12312020132257 is a prime.

It is a super-2 number, since 2×12312020132321² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12312020132323) 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, 38697665 + ... + 39014526.

It is an arithmetic number, because the mean of its divisors is an integer number (947622469248).

Almost surely, 2^{12312020132321} is an apocalyptic number.

It is an amenable number.

12312020132321 is a deficient number, since it is larger than the sum of its proper divisors (2849939375647).

12312020132321 is a wasteful number, since it uses less digits than its factorization.

12312020132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77713952.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12312020132321 its reverse (12323102021321), we get a palindrome (24635122153642).

The spelling of 12312020132321 in words is "twelve trillion, three hundred twelve billion, twenty million, one hundred thirty-two thousand, three hundred twenty-one".