120020011998 has 8 divisors (see below), whose sum is σ = 240040024008. Its totient is φ = 40006670664.

The previous prime is 120020011997. The next prime is 120020011999. The reversal of 120020011998 is 899110020021.

It is an interprime number because it is at equal distance from previous prime (120020011997) and next prime (120020011999).

It is a sphenic number, since it is the product of 3 distinct primes.

120020011998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020011997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10001667661 + ... + 10001667672.

It is an arithmetic number, because the mean of its divisors is an integer number (30005003001).

Almost surely, 2^120020011998 is an apocalyptic number.

120020011998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

120020011998 is a wasteful number, since it uses less digits than its factorization.

120020011998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003335338.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 120020011998 in words is "one hundred twenty billion, twenty million, eleven thousand, nine hundred ninety-eight".