21035314323 has 24 divisors (see below), whose sum is σ = 30487403856. Its totient is φ = 13976064000.

The previous prime is 21035314297. The next prime is 21035314369. The reversal of 21035314323 is 32341353012.

21035314323 is a `hidden beast` number, since 2 + 103 + 531 + 4 + 3 + 23 = 666.

It is not a de Polignac number, because 21035314323 - 2⁹ = 21035313811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21035314393) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3464136 + ... + 3470202.

It is an arithmetic number, because the mean of its divisors is an integer number (1270308494).

Almost surely, 2^21035314323 is an apocalyptic number.

21035314323 is a deficient number, since it is larger than the sum of its proper divisors (9452089533).

21035314323 is a wasteful number, since it uses less digits than its factorization.

21035314323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7315 (or 7312 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 21035314323 its reverse (32341353012), we get a palindrome (53376667335).

It can be divided in two parts, 210353 and 14323, that added together give a square (224676 = 474²).

The spelling of 21035314323 in words is "twenty-one billion, thirty-five million, three hundred fourteen thousand, three hundred twenty-three".