12311111220302 has 8 divisors (see below), whose sum is σ = 18492068024976. Its totient is φ = 6147088545312.

The previous prime is 12311111220179. The next prime is 12311111220323. The reversal of 12311111220302 is 20302211111321.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4233530603 + ... + 4233533510.

It is an arithmetic number, because the mean of its divisors is an integer number (2311508503122).

Almost surely, 2^{12311111220302} is an apocalyptic number.

12311111220302 is a deficient number, since it is larger than the sum of its proper divisors (6180956804674).

12311111220302 is an equidigital number, since it uses as much as digits as its factorization.

12311111220302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8467064842.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12311111220302 its reverse (20302211111321), we get a palindrome (32613322331623).

The spelling of 12311111220302 in words is "twelve trillion, three hundred eleven billion, one hundred eleven million, two hundred twenty thousand, three hundred two".