311232003223 has 4 divisors (see below), whose sum is σ = 311321880208. Its totient is φ = 311142126240.

The previous prime is 311232003217. The next prime is 311232003233. The reversal of 311232003223 is 322300232113.

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 311232003223 - 2²⁵ = 311198448791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311232003194 and 311232003203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311232003233) 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, 44933298 + ... + 44940223.

It is an arithmetic number, because the mean of its divisors is an integer number (77830470052).

Almost surely, 2^311232003223 is an apocalyptic number.

311232003223 is a deficient number, since it is larger than the sum of its proper divisors (89876985).

311232003223 is an equidigital number, since it uses as much as digits as its factorization.

311232003223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89876984.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 311232003223 its reverse (322300232113), we get a palindrome (633532235336).

The spelling of 311232003223 in words is "three hundred eleven billion, two hundred thirty-two million, three thousand, two hundred twenty-three".