12013212323 has 8 divisors (see below), whose sum is σ = 13734306048. Its totient is φ = 10293348744.

The previous prime is 12013212293. The next prime is 12013212377. The reversal of 12013212323 is 32321231021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12013212323 - 2¹⁶ = 12013146787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12013212295 and 12013212304.

It is not an unprimeable number, because it can be changed into a prime (12013211323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286511 + ... + 325752.

It is an arithmetic number, because the mean of its divisors is an integer number (1716788256).

Almost surely, 2^12013212323 is an apocalyptic number.

12013212323 is a deficient number, since it is larger than the sum of its proper divisors (1721093725).

12013212323 is an equidigital number, since it uses as much as digits as its factorization.

12013212323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615073.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12013212323 its reverse (32321231021), we get a palindrome (44334443344).

The spelling of 12013212323 in words is "twelve billion, thirteen million, two hundred twelve thousand, three hundred twenty-three".