120020032005 has 32 divisors (see below), whose sum is σ = 196527513600. Its totient is φ = 62512645440.

The previous prime is 120020031979. The next prime is 120020032007. The reversal of 120020032005 is 500230020021.

It is not a de Polignac number, because 120020032005 - 2⁹ = 120020031493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020032007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6956740 + ... + 6973970.

It is an arithmetic number, because the mean of its divisors is an integer number (6141484800).

Almost surely, 2^120020032005 is an apocalyptic number.

120020032005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120020032005 is a deficient number, since it is larger than the sum of its proper divisors (76507481595).

120020032005 is a wasteful number, since it uses less digits than its factorization.

120020032005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28081.

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 120020032005 its reverse (500230020021), we get a palindrome (620250052026).

The spelling of 120020032005 in words is "one hundred twenty billion, twenty million, thirty-two thousand, five".