21120301330 has 16 divisors (see below), whose sum is σ = 38034572184. Its totient is φ = 8444113920.

The previous prime is 21120301327. The next prime is 21120301369. The reversal of 21120301330 is 3310302112.

It can be written as a sum of positive squares in 4 ways, for example, as 10036633489 + 11083667841 = 100183^2 + 105279^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478641 + ... + 520900.

Almost surely, 2^21120301330 is an apocalyptic number.

21120301330 is a deficient number, since it is larger than the sum of its proper divisors (16914270854).

21120301330 is a wasteful number, since it uses less digits than its factorization.

21120301330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001661.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21120301330 its reverse (3310302112), we get a palindrome (24430603442).

The spelling of 21120301330 in words is "twenty-one billion, one hundred twenty million, three hundred one thousand, three hundred thirty".