2113121330 has 8 divisors (see below), whose sum is σ = 3803618412. Its totient is φ = 845248528.

The previous prime is 2113121321. The next prime is 2113121411. The reversal of 2113121330 is 331213112.

It can be written as a sum of positive squares in 2 ways, for example, as 2108554561 + 4566769 = 45919^2 + 2137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2113121299 and 2113121308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105656057 + ... + 105656076.

Almost surely, 2^2113121330 is an apocalyptic number.

2113121330 is a deficient number, since it is larger than the sum of its proper divisors (1690497082).

2113121330 is a wasteful number, since it uses less digits than its factorization.

2113121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211312140.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2113121330 is about 45968.6994595235. The cubic root of 2113121330 is about 1283.2407565010.

Adding to 2113121330 its reverse (331213112), we get a palindrome (2444334442).

The spelling of 2113121330 in words is "two billion, one hundred thirteen million, one hundred twenty-one thousand, three hundred thirty".