21313323102 has 8 divisors (see below), whose sum is σ = 42626646216. Its totient is φ = 7104441032.

The previous prime is 21313323091. The next prime is 21313323107. The reversal of 21313323102 is 20132331312.

It is a sphenic number, since it is the product of 3 distinct primes.

21313323102 is an admirable number.

It is a super-3 number, since 3×21313323102³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313323107) 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 3 ways as a sum of consecutive naturals, for example, 1776110253 + ... + 1776110264.

It is an arithmetic number, because the mean of its divisors is an integer number (5328330777).

Almost surely, 2^21313323102 is an apocalyptic number.

21313323102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21313323102 is a wasteful number, since it uses less digits than its factorization.

21313323102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552220522.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21313323102 its reverse (20132331312), we get a palindrome (41445654414).

It can be divided in two parts, 2131 and 3323102, that added together give a palindrome (3325233).

The spelling of 21313323102 in words is "twenty-one billion, three hundred thirteen million, three hundred twenty-three thousand, one hundred two".