2128131135 has 24 divisors (see below), whose sum is σ = 3972512544. Its totient is φ = 1047695040.

The previous prime is 2128131127. The next prime is 2128131191. The reversal of 2128131135 is 5311318212.

It is not a de Polignac number, because 2128131135 - 2³ = 2128131127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2128131099 and 2128131108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1818331 + ... + 1819500.

It is an arithmetic number, because the mean of its divisors is an integer number (165521356).

Almost surely, 2^2128131135 is an apocalyptic number.

2128131135 is a deficient number, since it is larger than the sum of its proper divisors (1844381409).

2128131135 is a wasteful number, since it uses less digits than its factorization.

2128131135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637855 (or 3637852 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 2128131135 is about 46131.6717126098. The cubic root of 2128131135 is about 1286.2719387555.

Adding to 2128131135 its reverse (5311318212), we get a palindrome (7439449347).

The spelling of 2128131135 in words is "two billion, one hundred twenty-eight million, one hundred thirty-one thousand, one hundred thirty-five".