21101310202302 has 96 divisors (see below), whose sum is σ = 50168002510080. Its totient is φ = 6356896968960.

The previous prime is 21101310202261. The next prime is 21101310202309. The reversal of 21101310202302 is 20320201310112.

21101310202302 is a `hidden beast` number, since 2 + 1 + 101 + 310 + 20 + 230 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101310202309) 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 47 ways as a sum of consecutive naturals, for example, 134353023 + ... + 134509989.

It is an arithmetic number, because the mean of its divisors is an integer number (522583359480).

Almost surely, 2^{21101310202302} is an apocalyptic number.

21101310202302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 21101310202302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25084001255040).

21101310202302 is an abundant number, since it is smaller than the sum of its proper divisors (29066692307778).

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

21101310202302 is a wasteful number, since it uses less digits than its factorization.

21101310202302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160958 (or 160955 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21101310202302 its reverse (20320201310112), we get a palindrome (41421511512414).

The spelling of 21101310202302 in words is "twenty-one trillion, one hundred one billion, three hundred ten million, two hundred two thousand, three hundred two".