2121530334 has 64 divisors (see below), whose sum is σ = 5601249792. Its totient is φ = 518630400.

The previous prime is 2121530311. The next prime is 2121530371. The reversal of 2121530334 is 4330351212.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127207 + ... + 142914.

It is an arithmetic number, because the mean of its divisors is an integer number (87519528).

Almost surely, 2^2121530334 is an apocalyptic number.

2121530334 is an abundant number, since it is smaller than the sum of its proper divisors (3479719458).

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

2121530334 is a wasteful number, since it uses less digits than its factorization.

2121530334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270161.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2121530334 is about 46060.0731002459. The cubic root of 2121530334 is about 1284.9406895768.

Adding to 2121530334 its reverse (4330351212), we get a palindrome (6451881546).

The spelling of 2121530334 in words is "two billion, one hundred twenty-one million, five hundred thirty thousand, three hundred thirty-four".