20101321102302 has 96 divisors (see below), whose sum is σ = 48255780658176. Its totient is φ = 5996502691200.

The previous prime is 20101321102297. The next prime is 20101321102321. The reversal of 20101321102302 is 20320112310102.

20101321102302 is a `hidden beast` number, since 2 + 0 + 101 + 321 + 10 + 230 + 2 = 666.

It is a super-2 number, since 2×20101321102302² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2441523 + ... + 6794385.

It is an arithmetic number, because the mean of its divisors is an integer number (502664381856).

Almost surely, 2^{20101321102302} is an apocalyptic number.

20101321102302 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 20101321102302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24127890329088).

20101321102302 is an abundant number, since it is smaller than the sum of its proper divisors (28154459555874).

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

20101321102302 is a wasteful number, since it uses less digits than its factorization.

20101321102302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353246 (or 4353243 counting only the distinct ones).

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

Adding to 20101321102302 its reverse (20320112310102), we get a palindrome (40421433412404).

The spelling of 20101321102302 in words is "twenty trillion, one hundred one billion, three hundred twenty-one million, one hundred two thousand, three hundred two".