21160351503300 has 144 divisors (see below), whose sum is σ = 64448790638400. Its totient is φ = 5345563392000.

The previous prime is 21160351503299. The next prime is 21160351503331. The reversal of 21160351503300 is 330515306112.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187867000 + ... + 187979600.

It is an arithmetic number, because the mean of its divisors is an integer number (447561046100).

Almost surely, 2^{21160351503300} is an apocalyptic number.

21160351503300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21160351503300 is an abundant number, since it is smaller than the sum of its proper divisors (43288439135100).

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

21160351503300 is a wasteful number, since it uses less digits than its factorization.

21160351503300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145606 (or 145599 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 21160351503300 its reverse (330515306112), we get a palindrome (21490866809412).

The spelling of 21160351503300 in words is "twenty-one trillion, one hundred sixty billion, three hundred fifty-one million, five hundred three thousand, three hundred".