2313312220 has 12 divisors (see below), whose sum is σ = 4857955704. Its totient is φ = 925324880.

The previous prime is 2313312217. The next prime is 2313312229. The reversal of 2313312220 is 222133132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313312229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57832786 + ... + 57832825.

It is an arithmetic number, because the mean of its divisors is an integer number (404829642).

Almost surely, 2^2313312220 is an apocalyptic number.

2313312220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2313312220 is an abundant number, since it is smaller than the sum of its proper divisors (2544643484).

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

2313312220 is a wasteful number, since it uses less digits than its factorization.

2313312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115665620 (or 115665618 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2313312220 is about 48096.9044741967. The cubic root of 2313312220 is about 1322.5479215485.

Adding to 2313312220 its reverse (222133132), we get a palindrome (2535445352).

It can be divided in two parts, 23133 and 12220, that added together give a palindrome (35353).

The spelling of 2313312220 in words is "two billion, three hundred thirteen million, three hundred twelve thousand, two hundred twenty".