10821321235 has 4 divisors (see below), whose sum is σ = 12985585488. Its totient is φ = 8657056984.

The previous prime is 10821321223. The next prime is 10821321257. The reversal of 10821321235 is 53212312801.

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

It is a cyclic number.

It is not a de Polignac number, because 10821321235 - 2⁹ = 10821320723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082132119 + ... + 1082132128.

It is an arithmetic number, because the mean of its divisors is an integer number (3246396372).

Almost surely, 2^10821321235 is an apocalyptic number.

10821321235 is a deficient number, since it is larger than the sum of its proper divisors (2164264253).

10821321235 is an equidigital number, since it uses as much as digits as its factorization.

10821321235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164264252.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 10821321235 in words is "ten billion, eight hundred twenty-one million, three hundred twenty-one thousand, two hundred thirty-five".