21233312304430 has 16 divisors (see below), whose sum is σ = 38413972111680. Its totient is φ = 8450211596512.

The previous prime is 21233312304427. The next prime is 21233312304461. The reversal of 21233312304430 is 3440321333212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21233312304392 and 21233312304401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5389163590 + ... + 5389167529.

It is an arithmetic number, because the mean of its divisors is an integer number (2400873256980).

Almost surely, 2^{21233312304430} is an apocalyptic number.

21233312304430 is a deficient number, since it is larger than the sum of its proper divisors (17180659807250).

21233312304430 is a wasteful number, since it uses less digits than its factorization.

21233312304430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10778331323.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 21233312304430 its reverse (3440321333212), we get a palindrome (24673633637642).

The spelling of 21233312304430 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred twelve million, three hundred four thousand, four hundred thirty".