21230300030 has 8 divisors (see below), whose sum is σ = 38214540072. Its totient is φ = 8492120008.

The previous prime is 21230300027. The next prime is 21230300053. The reversal of 21230300030 is 3000303212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21230299978 and 21230300014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061514992 + ... + 1061515011.

It is an arithmetic number, because the mean of its divisors is an integer number (4776817509).

Almost surely, 2^21230300030 is an apocalyptic number.

21230300030 is a deficient number, since it is larger than the sum of its proper divisors (16984240042).

21230300030 is a wasteful number, since it uses less digits than its factorization.

21230300030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123030010.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 21230300030 its reverse (3000303212), we get a palindrome (24230603242).

The spelling of 21230300030 in words is "twenty-one billion, two hundred thirty million, three hundred thousand, thirty".