12011132323 has 4 divisors (see below), whose sum is σ = 12102820488. Its totient is φ = 11919444160.

The previous prime is 12011132317. The next prime is 12011132347. The reversal of 12011132323 is 32323111021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32323111021 = 167 ⋅193551563.

It is a cyclic number.

It is not a de Polignac number, because 12011132323 - 2⁵ = 12011132291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12011132323.

It is not an unprimeable number, because it can be changed into a prime (12011132303) 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, 45843886 + ... + 45844147.

It is an arithmetic number, because the mean of its divisors is an integer number (3025705122).

Almost surely, 2^12011132323 is an apocalyptic number.

12011132323 is a deficient number, since it is larger than the sum of its proper divisors (91688165).

12011132323 is an equidigital number, since it uses as much as digits as its factorization.

12011132323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91688164.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12011132323 its reverse (32323111021), we get a palindrome (44334243344).

The spelling of 12011132323 in words is "twelve billion, eleven million, one hundred thirty-two thousand, three hundred twenty-three".