311313202230 has 32 divisors (see below), whose sum is σ = 747190495584. Its totient is φ = 83012541696.

The previous prime is 311313202229. The next prime is 311313202241. The reversal of 311313202230 is 32202313113.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311313202197 and 311313202206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340272 + ... + 859308.

It is an arithmetic number, because the mean of its divisors is an integer number (23349702987).

Almost surely, 2^311313202230 is an apocalyptic number.

311313202230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

311313202230 is an abundant number, since it is smaller than the sum of its proper divisors (435877293354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311313202230 is a wasteful number, since it uses less digits than its factorization.

311313202230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539040.

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

Adding to 311313202230 its reverse (32202313113), we get a palindrome (343515515343).

The spelling of 311313202230 in words is "three hundred eleven billion, three hundred thirteen million, two hundred two thousand, two hundred thirty".