120331021001985 has 16 divisors (see below), whose sum is σ = 213921815114880. Its totient is φ = 64176544534320.

The previous prime is 120331021001981. The next prime is 120331021002001. The reversal of 120331021001985 is 589100120133021.

120331021001985 is a `hidden beast` number, since 1 + 20 + 331 + 0 + 210 + 0 + 1 + 98 + 5 = 666.

It is not a de Polignac number, because 120331021001985 - 2² = 120331021001981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120331021001981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445670448021 + ... + 445670448290.

It is an arithmetic number, because the mean of its divisors is an integer number (13370113444680).

Almost surely, 2^{120331021001985} is an apocalyptic number.

120331021001985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120331021001985 is a deficient number, since it is larger than the sum of its proper divisors (93590794112895).

120331021001985 is an equidigital number, since it uses as much as digits as its factorization.

120331021001985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891340896325 (or 891340896319 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 120331021001985 in words is "one hundred twenty trillion, three hundred thirty-one billion, twenty-one million, one thousand, nine hundred eighty-five".