120020031312 has 40 divisors (see below), whose sum is σ = 310526639904. Its totient is φ = 39945400704.

The previous prime is 120020031283. The next prime is 120020031319. The reversal of 120020031312 is 213130020021.

It is a super-2 number, since 2×120020031312² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120020031291 and 120020031300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020031319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1883218 + ... + 1945905.

Almost surely, 2^120020031312 is an apocalyptic number.

120020031312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120020031312 is an abundant number, since it is smaller than the sum of its proper divisors (190506608592).

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

120020031312 is a wasteful number, since it uses less digits than its factorization.

120020031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829787 (or 3829781 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 120020031312 its reverse (213130020021), we get a palindrome (333150051333).

The spelling of 120020031312 in words is "one hundred twenty billion, twenty million, thirty-one thousand, three hundred twelve".