120120620720 has 40 divisors (see below), whose sum is σ = 279684740400. Its totient is φ = 47978691840.

The previous prime is 120120620681. The next prime is 120120620743. The reversal of 120120620720 is 27026021021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031195 + ... + 1141754.

It is an arithmetic number, because the mean of its divisors is an integer number (6992118510).

Almost surely, 2^120120620720 is an apocalyptic number.

120120620720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120120620720 is an abundant number, since it is smaller than the sum of its proper divisors (159564119680).

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

120120620720 is a wasteful number, since it uses less digits than its factorization.

120120620720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173653 (or 2173647 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 120120620720 its reverse (27026021021), we get a palindrome (147146641741).

The spelling of 120120620720 in words is "one hundred twenty billion, one hundred twenty million, six hundred twenty thousand, seven hundred twenty".