21313133202 has 16 divisors (see below), whose sum is σ = 42655066272. Its totient is φ = 7099577760.

The previous prime is 21313133167. The next prime is 21313133203. The reversal of 21313133202 is 20233131312.

It is a super-3 number, since 3×21313133202³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21313133203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190368 + ... + 1208139.

It is an arithmetic number, because the mean of its divisors is an integer number (2665941642).

Almost surely, 2^21313133202 is an apocalyptic number.

21313133202 is an abundant number, since it is smaller than the sum of its proper divisors (21341933070).

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

21313133202 is a wasteful number, since it uses less digits than its factorization.

21313133202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399993.

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

Adding to 21313133202 its reverse (20233131312), we get a palindrome (41546264514).

The spelling of 21313133202 in words is "twenty-one billion, three hundred thirteen million, one hundred thirty-three thousand, two hundred two".