21310323410 has 16 divisors (see below), whose sum is σ = 38360952000. Its totient is φ = 8523602736.

The previous prime is 21310323403. The next prime is 21310323413. The reversal of 21310323410 is 1432301312.

It is not an unprimeable number, because it can be changed into a prime (21310323413) 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 7 ways as a sum of consecutive naturals, for example, 132611 + ... + 245369.

It is an arithmetic number, because the mean of its divisors is an integer number (2397559500).

Almost surely, 2^21310323410 is an apocalyptic number.

21310323410 is a deficient number, since it is larger than the sum of its proper divisors (17050628590).

21310323410 is a wasteful number, since it uses less digits than its factorization.

21310323410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131665.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21310323410 its reverse (1432301312), we get a palindrome (22742624722).

The spelling of 21310323410 in words is "twenty-one billion, three hundred ten million, three hundred twenty-three thousand, four hundred ten".