21321113332130 has 64 divisors (see below), whose sum is σ = 39288674678400. Its totient is φ = 8327661888000.

The previous prime is 21321113332121. The next prime is 21321113332139. The reversal of 21321113332130 is 3123331112312.

It is an interprime number because it is at equal distance from previous prime (21321113332121) and next prime (21321113332139).

It is a self number, because there is not a number n which added to its sum of digits gives 21321113332130.

It is not an unprimeable number, because it can be changed into a prime (21321113332139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171413501 + ... + 171537839.

It is an arithmetic number, because the mean of its divisors is an integer number (613885541850).

Almost surely, 2^{21321113332130} is an apocalyptic number.

21321113332130 is a deficient number, since it is larger than the sum of its proper divisors (17967561346270).

21321113332130 is a wasteful number, since it uses less digits than its factorization.

21321113332130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125939.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 21321113332130 its reverse (3123331112312), we get a palindrome (24444444444442).

The spelling of 21321113332130 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred thirteen million, three hundred thirty-two thousand, one hundred thirty".