2321323220100 has 144 divisors (see below), whose sum is σ = 6744899548800. Its totient is φ = 616394956800.

The previous prime is 2321323220039. The next prime is 2321323220101. The reversal of 2321323220100 is 10223231232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2321323220101) by changing a digit.

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, 67736970 + ... + 67771230.

It is an arithmetic number, because the mean of its divisors is an integer number (46839580200).

Almost surely, 2^{2321323220100} is an apocalyptic number.

2321323220100 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 2321323220100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3372449774400).

2321323220100 is an abundant number, since it is smaller than the sum of its proper divisors (4423576328700).

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

2321323220100 is a wasteful number, since it uses less digits than its factorization.

2321323220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35230 (or 35223 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2321323220100 its reverse (10223231232), we get a palindrome (2331546451332).

The spelling of 2321323220100 in words is "two trillion, three hundred twenty-one billion, three hundred twenty-three million, two hundred twenty thousand, one hundred".