311133020223 has 8 divisors (see below), whose sum is σ = 436677923200. Its totient is φ = 196505065368.

The previous prime is 311133020221. The next prime is 311133020267. The reversal of 311133020223 is 322020331113.

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

It is not a de Polignac number, because 311133020223 - 2¹ = 311133020221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311133020223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311133020221) 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, 2729236963 + ... + 2729237076.

It is an arithmetic number, because the mean of its divisors is an integer number (54584740400).

Almost surely, 2^311133020223 is an apocalyptic number.

311133020223 is a deficient number, since it is larger than the sum of its proper divisors (125544902977).

311133020223 is a wasteful number, since it uses less digits than its factorization.

311133020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5458474061.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 311133020223 its reverse (322020331113), we get a palindrome (633153351336).

The spelling of 311133020223 in words is "three hundred eleven billion, one hundred thirty-three million, twenty thousand, two hundred twenty-three".