2123132213320 has 128 divisors (see below), whose sum is σ = 4989547836000. Its totient is φ = 812373811200.

The previous prime is 2123132213291. The next prime is 2123132213333. The reversal of 2123132213320 is 233122313212.

It can be written as a sum of positive squares in 16 ways, for example, as 139378275556 + 1983753937764 = 373334^2 + 1408458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31679206 + ... + 31746154.

Almost surely, 2^{2123132213320} is an apocalyptic number.

2123132213320 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 2123132213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2494773918000).

2123132213320 is an abundant number, since it is smaller than the sum of its proper divisors (2866415622680).

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

2123132213320 is a wasteful number, since it uses less digits than its factorization.

2123132213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67379 (or 67375 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2123132213320 its reverse (233122313212), we get a palindrome (2356254526532).

The spelling of 2123132213320 in words is "two trillion, one hundred twenty-three billion, one hundred thirty-two million, two hundred thirteen thousand, three hundred twenty".