311432012210243 has 4 divisors (see below), whose sum is σ = 311435982660720. Its totient is φ = 311428041759768.

The previous prime is 311432012210191. The next prime is 311432012210321. The reversal of 311432012210243 is 342012210234113.

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 311432012210243 - 2³² = 311427717242947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311432012510243) 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, 1985107580 + ... + 1985264457.

It is an arithmetic number, because the mean of its divisors is an integer number (77858995665180).

Almost surely, 2^{311432012210243} is an apocalyptic number.

311432012210243 is a deficient number, since it is larger than the sum of its proper divisors (3970450477).

311432012210243 is an equidigital number, since it uses as much as digits as its factorization.

311432012210243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970450476.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 311432012210243 its reverse (342012210234113), we get a palindrome (653444222444356).

The spelling of 311432012210243 in words is "three hundred eleven trillion, four hundred thirty-two billion, twelve million, two hundred ten thousand, two hundred forty-three".