21130333410 has 64 divisors (see below), whose sum is σ = 51029637120. Its totient is φ = 5599661760.

The previous prime is 21130333397. The next prime is 21130333421. The reversal of 21130333410 is 1433303112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3403369 + ... + 3409571.

It is an arithmetic number, because the mean of its divisors is an integer number (797338080).

Almost surely, 2^21130333410 is an apocalyptic number.

21130333410 is an abundant number, since it is smaller than the sum of its proper divisors (29899303710).

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

21130333410 is a wasteful number, since it uses less digits than its factorization.

21130333410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6903.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21130333410 its reverse (1433303112), we get a palindrome (22563636522).

The spelling of 21130333410 in words is "twenty-one billion, one hundred thirty million, three hundred thirty-three thousand, four hundred ten".