21233201434 has 8 divisors (see below), whose sum is σ = 31869977760. Its totient is φ = 10609875516.

The previous prime is 21233201419. The next prime is 21233201441. The reversal of 21233201434 is 43410233212.

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 = 21233201399 and 21233201408.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3358654 + ... + 3364969.

It is an arithmetic number, because the mean of its divisors is an integer number (3983747220).

Almost surely, 2^21233201434 is an apocalyptic number.

21233201434 is a deficient number, since it is larger than the sum of its proper divisors (10636776326).

21233201434 is a wasteful number, since it uses less digits than its factorization.

21233201434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6725204.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21233201434 its reverse (43410233212), we get a palindrome (64643434646).

The spelling of 21233201434 in words is "twenty-one billion, two hundred thirty-three million, two hundred one thousand, four hundred thirty-four".