2120521134 has 32 divisors (see below), whose sum is σ = 4372346880. Its totient is φ = 685102752.

The previous prime is 2120521127. The next prime is 2120521157. The reversal of 2120521134 is 4311250212.

It is a self number, because there is not a number n which added to its sum of digits gives 2120521134.

It is a congruent number.

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, 40227 + ... + 76545.

It is an arithmetic number, because the mean of its divisors is an integer number (136635840).

Almost surely, 2^2120521134 is an apocalyptic number.

2120521134 is an abundant number, since it is smaller than the sum of its proper divisors (2251825746).

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

2120521134 is a wasteful number, since it uses less digits than its factorization.

2120521134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36624.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2120521134 is about 46049.1165387567. The cubic root of 2120521134 is about 1284.7369109179.

Adding to 2120521134 its reverse (4311250212), we get a palindrome (6431771346).

The spelling of 2120521134 in words is "two billion, one hundred twenty million, five hundred twenty-one thousand, one hundred thirty-four".