21003322320030 has 64 divisors (see below), whose sum is σ = 51237728667648. Its totient is φ = 5509109064960.

The previous prime is 21003322319983. The next prime is 21003322320059. The reversal of 21003322320030 is 3002322330012.

It is a super-2 number, since 2×21003322320030² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003322319979 and 21003322320006.

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, 12262426 + ... + 13869885.

It is an arithmetic number, because the mean of its divisors is an integer number (800589510432).

Almost surely, 2^{21003322320030} is an apocalyptic number.

21003322320030 is an abundant number, since it is smaller than the sum of its proper divisors (30234406347618).

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

21003322320030 is a wasteful number, since it uses less digits than its factorization.

21003322320030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26132761.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21003322320030 its reverse (3002322330012), we get a palindrome (24005644650042).

The spelling of 21003322320030 in words is "twenty-one trillion, three billion, three hundred twenty-two million, three hundred twenty thousand, thirty".