2102323233220 has 144 divisors (see below), whose sum is σ = 5299350566832. Its totient is φ = 698081341440.

The previous prime is 2102323233181. The next prime is 2102323233233. The reversal of 2102323233220 is 223323232012.

It can be written as a sum of positive squares in 8 ways, for example, as 178842718404 + 1923480514816 = 422898^2 + 1386896^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5313702 + ... + 5695618.

It is an arithmetic number, because the mean of its divisors is an integer number (36801045603).

Almost surely, 2^{2102323233220} is an apocalyptic number.

2102323233220 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 2102323233220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2649675283416).

2102323233220 is an abundant number, since it is smaller than the sum of its proper divisors (3197027333612).

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

2102323233220 is a wasteful number, since it uses less digits than its factorization.

2102323233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382118 (or 382109 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 2102323233220 its reverse (223323232012), we get a palindrome (2325646465232).

The spelling of 2102323233220 in words is "two trillion, one hundred two billion, three hundred twenty-three million, two hundred thirty-three thousand, two hundred twenty".