21304123330 has 32 divisors (see below), whose sum is σ = 44479748736. Its totient is φ = 7195250304.

The previous prime is 21304123301. The next prime is 21304123417. The reversal of 21304123330 is 3332140312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2266539 + ... + 2275918.

It is an arithmetic number, because the mean of its divisors is an integer number (1389992148).

Almost surely, 2^21304123330 is an apocalyptic number.

21304123330 is an abundant number, since it is smaller than the sum of its proper divisors (23175625406).

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

21304123330 is a wasteful number, since it uses less digits than its factorization.

21304123330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542538.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21304123330 its reverse (3332140312), we get a palindrome (24636263642).

The spelling of 21304123330 in words is "twenty-one billion, three hundred four million, one hundred twenty-three thousand, three hundred thirty".