12011013021323 has 4 divisors (see below), whose sum is σ = 12025607205648. Its totient is φ = 11996418837000.

The previous prime is 12011013021283. The next prime is 12011013021383. The reversal of 12011013021323 is 32312031011021.

It is a happy number.

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 12011013021323 - 2²² = 12011008827019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011013021295 and 12011013021304.

It is not an unprimeable number, because it can be changed into a prime (12011013021383) 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, 7297090928 + ... + 7297092573.

It is an arithmetic number, because the mean of its divisors is an integer number (3006401801412).

Almost surely, 2^{12011013021323} is an apocalyptic number.

12011013021323 is a deficient number, since it is larger than the sum of its proper divisors (14594184325).

12011013021323 is an equidigital number, since it uses as much as digits as its factorization.

12011013021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14594184324.

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

Adding to 12011013021323 its reverse (32312031011021), we get a palindrome (44323044032344).

The spelling of 12011013021323 in words is "twelve trillion, eleven billion, thirteen million, twenty-one thousand, three hundred twenty-three".