21320331133200 has 240 divisors, whose sum is σ = 76908250509312. Its totient is φ = 5001837120000.

The previous prime is 21320331133193. The next prime is 21320331133207. The reversal of 21320331133200 is 233113302312.

It is an interprime number because it is at equal distance from previous prime (21320331133193) and next prime (21320331133207).

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×21320331133200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (21320331133207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25642036 + ... + 26460435.

Almost surely, 2^{21320331133200} is an apocalyptic number.

21320331133200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21320331133200 is an abundant number, since it is smaller than the sum of its proper divisors (55587919376112).

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

21320331133200 is a wasteful number, since it uses less digits than its factorization.

21320331133200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52102534 (or 52102523 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21320331133200 its reverse (233113302312), we get a palindrome (21553444435512).

The spelling of 21320331133200 in words is "twenty-one trillion, three hundred twenty billion, three hundred thirty-one million, one hundred thirty-three thousand, two hundred".