21032320210 has 16 divisors (see below), whose sum is σ = 41299828992. Its totient is φ = 7648116400.

The previous prime is 21032320207. The next prime is 21032320249. The reversal of 21032320210 is 1202323012.

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, 95601346 + ... + 95601565.

It is an arithmetic number, because the mean of its divisors is an integer number (2581239312).

Almost surely, 2^21032320210 is an apocalyptic number.

21032320210 is a deficient number, since it is larger than the sum of its proper divisors (20267508782).

21032320210 is a wasteful number, since it uses less digits than its factorization.

21032320210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191202929.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21032320210 its reverse (1202323012), we get a palindrome (22234643222).

The spelling of 21032320210 in words is "twenty-one billion, thirty-two million, three hundred twenty thousand, two hundred ten".