21233563410 has 32 divisors (see below), whose sum is σ = 50965168320. Its totient is φ = 5661770688.

The previous prime is 21233563409. The next prime is 21233563459. The reversal of 21233563410 is 1436533212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400221 + ... + 450159.

It is an arithmetic number, because the mean of its divisors is an integer number (1592661510).

Almost surely, 2^21233563410 is an apocalyptic number.

21233563410 is an abundant number, since it is smaller than the sum of its proper divisors (29731604910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21233563410 is a wasteful number, since it uses less digits than its factorization.

21233563410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64122.

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 21233563410 in words is "twenty-one billion, two hundred thirty-three million, five hundred sixty-three thousand, four hundred ten".