23203300030021 has 16 divisors (see below), whose sum is σ = 23551381453824. Its totient is φ = 22856874254064.

The previous prime is 23203300029983. The next prime is 23203300030051. The reversal of 23203300030021 is 12003000330232.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23203300030021 - 2²⁵ = 23203266475589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203300030051) 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, 164022706 + ... + 164164108.

It is an arithmetic number, because the mean of its divisors is an integer number (1471961340864).

Almost surely, 2^{23203300030021} is an apocalyptic number.

It is an amenable number.

23203300030021 is a deficient number, since it is larger than the sum of its proper divisors (348081423803).

23203300030021 is a wasteful number, since it uses less digits than its factorization.

23203300030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147240.

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

Adding to 23203300030021 its reverse (12003000330232), we get a palindrome (35206300360253).

The spelling of 23203300030021 in words is "twenty-three trillion, two hundred three billion, three hundred million, thirty thousand, twenty-one".