2128091334 has 36 divisors (see below), whose sum is σ = 4382934444. Its totient is φ = 688835808.

The previous prime is 2128091309. The next prime is 2128091341. The reversal of 2128091334 is 4331908212.

2128091334 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2128091295 and 2128091304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4180672 + ... + 4181180.

It is an arithmetic number, because the mean of its divisors is an integer number (121748179).

Almost surely, 2^2128091334 is an apocalyptic number.

2128091334 is an abundant number, since it is smaller than the sum of its proper divisors (2254843110).

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

2128091334 is an frugal number, since it uses more digits than its factorization.

2128091334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2128091334 is about 46131.2403258356. The cubic root of 2128091334 is about 1286.2639199469.

Adding to 2128091334 its reverse (4331908212), we get a palindrome (6459999546).

The spelling of 2128091334 in words is "two billion, one hundred twenty-eight million, ninety-one thousand, three hundred thirty-four".