21033510034 has 8 divisors (see below), whose sum is σ = 31653035568. Its totient is φ = 10482498180.

The previous prime is 21033510023. The next prime is 21033510061. The reversal of 21033510034 is 43001533012.

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 = 21033509987 and 21033510014.

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, 17127652 + ... + 17128879.

It is an arithmetic number, because the mean of its divisors is an integer number (3956629446).

Almost surely, 2^21033510034 is an apocalyptic number.

21033510034 is a deficient number, since it is larger than the sum of its proper divisors (10619525534).

21033510034 is a wasteful number, since it uses less digits than its factorization.

21033510034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34256840.

The product of its (nonzero) digits is 1080, while the sum is 22.

The spelling of 21033510034 in words is "twenty-one billion, thirty-three million, five hundred ten thousand, thirty-four".