120021321131300 has 144 divisors (see below), whose sum is σ = 263337548901504. Its totient is φ = 47478787200000.

The previous prime is 120021321131287. The next prime is 120021321131339. The reversal of 120021321131300 is 3131123120021.

It is a happy number.

It is a super-2 number, since 2×120021321131300² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 47 ways as a sum of consecutive naturals, for example, 3880276835 + ... + 3880307765.

Almost surely, 2^{120021321131300} is an apocalyptic number.

120021321131300 is a gapful number since it is divisible by the number (10) 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 120021321131300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131668774450752).

120021321131300 is an abundant number, since it is smaller than the sum of its proper divisors (143316227770204).

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

120021321131300 is a wasteful number, since it uses less digits than its factorization.

120021321131300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32230 (or 32223 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 120021321131300 its reverse (3131123120021), we get a palindrome (123152444251321).

The spelling of 120021321131300 in words is "one hundred twenty trillion, twenty-one billion, three hundred twenty-one million, one hundred thirty-one thousand, three hundred".