2112135305 has 16 divisors (see below), whose sum is σ = 2903744640. Its totient is φ = 1444770432.

The previous prime is 2112135283. The next prime is 2112135313. The reversal of 2112135305 is 5035312112.

It is a happy number.

It is not a de Polignac number, because 2112135305 - 2²² = 2107941001 is a prime.

It is a super-2 number, since 2×2112135305² = 8922231093254886050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59459 + ... + 88088.

It is an arithmetic number, because the mean of its divisors is an integer number (181484040).

Almost surely, 2^2112135305 is an apocalyptic number.

It is an amenable number.

2112135305 is a deficient number, since it is larger than the sum of its proper divisors (791609335).

2112135305 is a wasteful number, since it uses less digits than its factorization.

2112135305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147968.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2112135305 is about 45957.9732473050. The cubic root of 2112135305 is about 1283.0411301148.

Adding to 2112135305 its reverse (5035312112), we get a palindrome (7147447417).

The spelling of 2112135305 in words is "two billion, one hundred twelve million, one hundred thirty-five thousand, three hundred five".