120020331000 has 256 divisors, whose sum is σ = 380462060160. Its totient is φ = 31496601600.

The previous prime is 120020330977. The next prime is 120020331001. The reversal of 120020331000 is 133020021.

It is a happy number.

It is a super-2 number, since 2×120020331000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020331001) 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, 56161932 + ... + 56164068.

Almost surely, 2^120020331000 is an apocalyptic number.

120020331000 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 120020331000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190231030080).

120020331000 is an abundant number, since it is smaller than the sum of its proper divisors (260441729160).

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

120020331000 is a wasteful number, since it uses less digits than its factorization.

120020331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451 (or 2437 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 120020331000 its reverse (133020021), we get a palindrome (120153351021).

The spelling of 120020331000 in words is "one hundred twenty billion, twenty million, three hundred thirty-one thousand".