2312323322220 has 144 divisors (see below), whose sum is σ = 7068497304960. Its totient is φ = 611851161600.

The previous prime is 2312323322173. The next prime is 2312323322261. The reversal of 2312323322220 is 222233232132.

2312323322220 is a `hidden beast` number, since 2 + 3 + 12 + 323 + 322 + 2 + 2 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11992980 + ... + 12184260.

It is an arithmetic number, because the mean of its divisors is an integer number (49086786840).

Almost surely, 2^{2312323322220} is an apocalyptic number.

2312323322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2312323322220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3534248652480).

2312323322220 is an abundant number, since it is smaller than the sum of its proper divisors (4756173982740).

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

2312323322220 is a wasteful number, since it uses less digits than its factorization.

2312323322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191816 (or 191811 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 2312323322220 its reverse (222233232132), we get a palindrome (2534556554352).

The spelling of 2312323322220 in words is "two trillion, three hundred twelve billion, three hundred twenty-three million, three hundred twenty-two thousand, two hundred twenty".