12011231322311 has 8 divisors (see below), whose sum is σ = 12935226274320. Its totient is φ = 11087244096192.

The previous prime is 12011231322281. The next prime is 12011231322329. The reversal of 12011231322311 is 11322313211021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011231322311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011231322511) 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, 1526816 + ... + 5133578.

It is an arithmetic number, because the mean of its divisors is an integer number (1616903284290).

Almost surely, 2^{12011231322311} is an apocalyptic number.

12011231322311 is a deficient number, since it is larger than the sum of its proper divisors (923994952009).

12011231322311 is a wasteful number, since it uses less digits than its factorization.

12011231322311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862945.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12011231322311 its reverse (11322313211021), we get a palindrome (23333544533332).

The spelling of 12011231322311 in words is "twelve trillion, eleven billion, two hundred thirty-one million, three hundred twenty-two thousand, three hundred eleven".