21302120001132 has 144 divisors (see below), whose sum is σ = 58175019564480. Its totient is φ = 6552212620800.

The previous prime is 21302120001101. The next prime is 21302120001163. The reversal of 21302120001132 is 23110002120312.

It is an interprime number because it is at equal distance from previous prime (21302120001101) and next prime (21302120001163).

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

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, 27982582 + ... + 28733762.

It is an arithmetic number, because the mean of its divisors is an integer number (403993191420).

Almost surely, 2^{21302120001132} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21302120001132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29087509782240).

21302120001132 is an abundant number, since it is smaller than the sum of its proper divisors (36872899563348).

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

21302120001132 is a wasteful number, since it uses less digits than its factorization.

21302120001132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752424 (or 752419 counting only the distinct ones).

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

Adding to 21302120001132 its reverse (23110002120312), we get a palindrome (44412122121444).

The spelling of 21302120001132 in words is "twenty-one trillion, three hundred two billion, one hundred twenty million, one thousand, one hundred thirty-two".