21331012011300 has 180 divisors, whose sum is σ = 72786015129520. Its totient is φ = 5388887206080.

The previous prime is 21331012011241. The next prime is 21331012011329. The reversal of 21331012011300 is 311021013312.

21331012011300 is a `hidden beast` number, since 2 + 1 + 331 + 0 + 1 + 20 + 11 + 300 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 69147634 + ... + 69455433.

Almost surely, 2^{21331012011300} is an apocalyptic number.

21331012011300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21331012011300 is an abundant number, since it is smaller than the sum of its proper divisors (51455003118220).

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

21331012011300 is a wasteful number, since it uses less digits than its factorization.

21331012011300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138603112 (or 138603096 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 21331012011300 its reverse (311021013312), we get a palindrome (21642033024612).

The spelling of 21331012011300 in words is "twenty-one trillion, three hundred thirty-one billion, twelve million, eleven thousand, three hundred".