2121330320 has 40 divisors (see below), whose sum is σ = 4979996736. Its totient is φ = 840290688.

The previous prime is 2121330293. The next prime is 2121330377. The reversal of 2121330320 is 230331212.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120482 + ... + 136961.

Almost surely, 2^2121330320 is an apocalyptic number.

2121330320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121330320 is an abundant number, since it is smaller than the sum of its proper divisors (2858666416).

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

2121330320 is a wasteful number, since it uses less digits than its factorization.

2121330320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257559 (or 257553 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2121330320 is about 46057.9018193404. The cubic root of 2121330320 is about 1284.9003076883.

Adding to 2121330320 its reverse (230331212), we get a palindrome (2351661532).

The spelling of 2121330320 in words is "two billion, one hundred twenty-one million, three hundred thirty thousand, three hundred twenty".