21410434323 has 32 divisors (see below), whose sum is σ = 32200358400. Its totient is φ = 14057517600.

The previous prime is 21410434291. The next prime is 21410434337. The reversal of 21410434323 is 32343401412.

21410434323 is a `hidden beast` number, since 214 + 10 + 4 + 3 + 432 + 3 = 666.

It is not a de Polignac number, because 21410434323 - 2⁵ = 21410434291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21410434223) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1951788 + ... + 1962726.

It is an arithmetic number, because the mean of its divisors is an integer number (1006261200).

Almost surely, 2^21410434323 is an apocalyptic number.

21410434323 is a deficient number, since it is larger than the sum of its proper divisors (10789924077).

21410434323 is a wasteful number, since it uses less digits than its factorization.

21410434323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12040 (or 12034 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21410434323 its reverse (32343401412), we get a palindrome (53753835735).

The spelling of 21410434323 in words is "twenty-one billion, four hundred ten million, four hundred thirty-four thousand, three hundred twenty-three".