21230330023 has 8 divisors (see below), whose sum is σ = 24264212480. Its totient is φ = 18196692120.

The previous prime is 21230329979. The next prime is 21230330059. The reversal of 21230330023 is 32003303212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21230330023 - 2⁹ = 21230329511 is a prime.

It is a super-3 number, since 3×21230330023³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230330423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198298 + ... + 285976.

It is an arithmetic number, because the mean of its divisors is an integer number (3033026560).

Almost surely, 2^21230330023 is an apocalyptic number.

21230330023 is a deficient number, since it is larger than the sum of its proper divisors (3033882457).

21230330023 is an equidigital number, since it uses as much as digits as its factorization.

21230330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122277.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21230330023 its reverse (32003303212), we get a palindrome (53233633235).

The spelling of 21230330023 in words is "twenty-one billion, two hundred thirty million, three hundred thirty thousand, twenty-three".