21322113030 has 64 divisors (see below), whose sum is σ = 57422001600. Its totient is φ = 5629593600.

The previous prime is 21322113019. The next prime is 21322113041. The reversal of 21322113030 is 3031122312.

It is an interprime number because it is at equal distance from previous prime (21322113019) and next prime (21322113041).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21322112994 and 21322113012.

It is a congruent number.

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, 363675 + ... + 418214.

It is an arithmetic number, because the mean of its divisors is an integer number (897218775).

Almost surely, 2^21322113030 is an apocalyptic number.

21322113030 is an abundant number, since it is smaller than the sum of its proper divisors (36099888570).

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

21322113030 is a wasteful number, since it uses less digits than its factorization.

21322113030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782006 (or 782000 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21322113030 its reverse (3031122312), we get a palindrome (24353235342).

The spelling of 21322113030 in words is "twenty-one billion, three hundred twenty-two million, one hundred thirteen thousand, thirty".