21033332030 has 16 divisors (see below), whose sum is σ = 37967256144. Its totient is φ = 8389497600.

The previous prime is 21033332003. The next prime is 21033332039. The reversal of 21033332030 is 3023333012.

It is a junction number, because it is equal to n+sod(n) for n = 21033331993 and 21033332011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033332039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2975696 + ... + 2982755.

It is an arithmetic number, because the mean of its divisors is an integer number (2372953509).

Almost surely, 2^21033332030 is an apocalyptic number.

21033332030 is a deficient number, since it is larger than the sum of its proper divisors (16933924114).

21033332030 is a wasteful number, since it uses less digits than its factorization.

21033332030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5958811.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 21033332030 its reverse (3023333012), we get a palindrome (24056665042).

The spelling of 21033332030 in words is "twenty-one billion, thirty-three million, three hundred thirty-two thousand, thirty".