21033301030 has 32 divisors (see below), whose sum is σ = 43280262144. Its totient is φ = 7209458016.

The previous prime is 21033301019. The next prime is 21033301033. The reversal of 21033301030 is 3010333012.

It is a junction number, because it is equal to n+sod(n) for n = 21033300995 and 21033301013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033301033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231519 + ... + 309301.

It is an arithmetic number, because the mean of its divisors is an integer number (1352508192).

Almost surely, 2^21033301030 is an apocalyptic number.

21033301030 is an abundant number, since it is smaller than the sum of its proper divisors (22246961114).

21033301030 is a wasteful number, since it uses less digits than its factorization.

21033301030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81660.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 21033301030 its reverse (3010333012), we get a palindrome (24043634042).

The spelling of 21033301030 in words is "twenty-one billion, thirty-three million, three hundred one thousand, thirty".