21313033330 has 32 divisors (see below), whose sum is σ = 38593584000. Its totient is φ = 8474159232.

The previous prime is 21313033279. The next prime is 21313033349. The reversal of 21313033330 is 3333031312.

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, 2309766 + ... + 2318974.

It is an arithmetic number, because the mean of its divisors is an integer number (1206049500).

Almost surely, 2^21313033330 is an apocalyptic number.

21313033330 is a deficient number, since it is larger than the sum of its proper divisors (17280550670).

21313033330 is a wasteful number, since it uses less digits than its factorization.

21313033330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10578.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 21313033330 its reverse (3333031312), we get a palindrome (24646064642).

The spelling of 21313033330 in words is "twenty-one billion, three hundred thirteen million, thirty-three thousand, three hundred thirty".