21023323331130 has 24 divisors (see below), whose sum is σ = 54660640661172. Its totient is φ = 5606219554944.

The previous prime is 21023323331077. The next prime is 21023323331137. The reversal of 21023323331130 is 3113332332012.

21023323331130 is a `hidden beast` number, since 2 + 1 + 0 + 2 + 3 + 323 + 331 + 1 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20881161907281 + 142161423849 = 4569591^2 + 377043^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21023323331094 and 21023323331103.

It is not an unprimeable number, because it can be changed into a prime (21023323331137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116796240639 + ... + 116796240818.

Almost surely, 2^{21023323331130} is an apocalyptic number.

21023323331130 is an abundant number, since it is smaller than the sum of its proper divisors (33637317330042).

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

21023323331130 is a wasteful number, since it uses less digits than its factorization.

21023323331130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233592481470 (or 233592481467 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 21023323331130 its reverse (3113332332012), we get a palindrome (24136655663142).

The spelling of 21023323331130 in words is "twenty-one trillion, twenty-three billion, three hundred twenty-three million, three hundred thirty-one thousand, one hundred thirty".