2120312133 has 10 divisors (see below), whose sum is σ = 3167379974. Its totient is φ = 1413541368.

The previous prime is 2120312123. The next prime is 2120312141. The reversal of 2120312133 is 3312130212.

It can be written as a sum of positive squares in only one way, i.e., 1914762564 + 205549569 = 43758^2 + 14337^2 .

It is not a de Polignac number, because 2120312133 - 2²⁹ = 1583441221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120312123) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13088266 + ... + 13088427.

Almost surely, 2^2120312133 is an apocalyptic number.

It is an amenable number.

2120312133 is a deficient number, since it is larger than the sum of its proper divisors (1047067841).

2120312133 is an equidigital number, since it uses as much as digits as its factorization.

2120312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26176705 (or 26176696 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2120312133 is about 46046.8471559129. The cubic root of 2120312133 is about 1284.6947011489.

Adding to 2120312133 its reverse (3312130212), we get a palindrome (5432442345).

The spelling of 2120312133 in words is "two billion, one hundred twenty million, three hundred twelve thousand, one hundred thirty-three".