21160132423320 has 256 divisors, whose sum is σ = 73333857254400. Its totient is φ = 4827393884160.

The previous prime is 21160132423319. The next prime is 21160132423321. The reversal of 21160132423320 is 2332423106112.

It is an interprime number because it is at equal distance from previous prime (21160132423319) and next prime (21160132423321).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21160132423321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 200313957 + ... + 200419563.

It is an arithmetic number, because the mean of its divisors is an integer number (286460379900).

Almost surely, 2^{21160132423320} is an apocalyptic number.

21160132423320 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 21160132423320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36666928627200).

21160132423320 is an abundant number, since it is smaller than the sum of its proper divisors (52173724831080).

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

21160132423320 is a wasteful number, since it uses less digits than its factorization.

21160132423320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114578 (or 114574 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 21160132423320 its reverse (2332423106112), we get a palindrome (23492555529432).

The spelling of 21160132423320 in words is "twenty-one trillion, one hundred sixty billion, one hundred thirty-two million, four hundred twenty-three thousand, three hundred twenty".