21232033334 has 4 divisors (see below), whose sum is σ = 31848050004. Its totient is φ = 10616016666.

The previous prime is 21232033321. The next prime is 21232033367. The reversal of 21232033334 is 43333023212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5308008332 + ... + 5308008335.

It is an arithmetic number, because the mean of its divisors is an integer number (7962012501).

Almost surely, 2^21232033334 is an apocalyptic number.

21232033334 is a deficient number, since it is larger than the sum of its proper divisors (10616016670).

21232033334 is a wasteful number, since it uses less digits than its factorization.

21232033334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10616016669.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 21232033334 its reverse (43333023212), we get a palindrome (64565056546).

The spelling of 21232033334 in words is "twenty-one billion, two hundred thirty-two million, thirty-three thousand, three hundred thirty-four".