2121343134 has 16 divisors (see below), whose sum is σ = 4243145088. Its totient is φ = 707037912.

The previous prime is 2121343121. The next prime is 2121343139. The reversal of 2121343134 is 4313431212.

It is a happy number.

2121343134 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121343139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82719 + ... + 105285.

It is an arithmetic number, because the mean of its divisors is an integer number (265196568).

Almost surely, 2^2121343134 is an apocalyptic number.

2121343134 is an abundant number, since it is smaller than the sum of its proper divisors (2121801954).

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

2121343134 is a wasteful number, since it uses less digits than its factorization.

2121343134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38239.

The product of its digits is 1728, while the sum is 24.

The square root of 2121343134 is about 46058.0409266395. The cubic root of 2121343134 is about 1284.9028948509.

Adding to 2121343134 its reverse (4313431212), we get a palindrome (6434774346).

The spelling of 2121343134 in words is "two billion, one hundred twenty-one million, three hundred forty-three thousand, one hundred thirty-four".