120320020 has 24 divisors (see below), whose sum is σ = 258549984. Its totient is φ = 47008416.

The previous prime is 120320003. The next prime is 120320051. The reversal of 120320020 is 20023021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 120319979 and 120320006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69094 + ... + 70813.

It is an arithmetic number, because the mean of its divisors is an integer number (10772916).

Almost surely, 2^120320020 is an apocalyptic number.

120320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120320020 is an abundant number, since it is smaller than the sum of its proper divisors (138229964).

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

120320020 is a wasteful number, since it uses less digits than its factorization.

120320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139959 (or 139957 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 120320020 is about 10969.0482722978. The cubic root of 120320020 is about 493.6804907759.

Adding to 120320020 its reverse (20023021), we get a palindrome (140343041).

The spelling of 120320020 in words is "one hundred twenty million, three hundred twenty thousand, twenty".