12321013321051 has 4 divisors (see below), whose sum is σ = 12321091952352. Its totient is φ = 12320934689752.

The previous prime is 12321013321049. The next prime is 12321013321103. The reversal of 12321013321051 is 15012331012321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12321013321051 - 2¹ = 12321013321049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321013321021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39080140 + ... + 39394153.

It is an arithmetic number, because the mean of its divisors is an integer number (3080272988088).

Almost surely, 2^{12321013321051} is an apocalyptic number.

12321013321051 is a deficient number, since it is larger than the sum of its proper divisors (78631301).

12321013321051 is an equidigital number, since it uses as much as digits as its factorization.

12321013321051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78631300.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 12321013321051 its reverse (15012331012321), we get a palindrome (27333344333372).

The spelling of 12321013321051 in words is "twelve trillion, three hundred twenty-one billion, thirteen million, three hundred twenty-one thousand, fifty-one".