21302366211340 has 96 divisors (see below), whose sum is σ = 45829847004480. Its totient is φ = 8312877490176.

The previous prime is 21302366211337. The next prime is 21302366211397. The reversal of 21302366211340 is 4311266320312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21302366211296 and 21302366211305.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3209634502 + ... + 3209641138.

It is an arithmetic number, because the mean of its divisors is an integer number (477394239630).

Almost surely, 2^{21302366211340} is an apocalyptic number.

21302366211340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21302366211340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22914923502240).

21302366211340 is an abundant number, since it is smaller than the sum of its proper divisors (24527480793140).

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

21302366211340 is a wasteful number, since it uses less digits than its factorization.

21302366211340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10571 (or 10569 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 21302366211340 in words is "twenty-one trillion, three hundred two billion, three hundred sixty-six million, two hundred eleven thousand, three hundred forty".