120130012320021 has 24 divisors (see below), whose sum is σ = 189544523201280. Its totient is φ = 72710396452800.

The previous prime is 120130012319981. The next prime is 120130012320037. The reversal of 120130012320021 is 120023210031021.

120130012320021 is a `hidden beast` number, since 1 + 20 + 1 + 300 + 1 + 2 + 320 + 0 + 21 = 666.

It is not a de Polignac number, because 120130012320021 - 2¹⁸ = 120130012057877 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120130012319976 and 120130012320003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120130012390021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 797187781 + ... + 797338458.

It is an arithmetic number, because the mean of its divisors is an integer number (7897688466720).

Almost surely, 2^{120130012320021} is an apocalyptic number.

120130012320021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120130012320021 is a deficient number, since it is larger than the sum of its proper divisors (69414510881259).

120130012320021 is a wasteful number, since it uses less digits than its factorization.

120130012320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594527017 (or 1594527014 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 120130012320021 its reverse (120023210031021), we get a palindrome (240153222351042).

The spelling of 120130012320021 in words is "one hundred twenty trillion, one hundred thirty billion, twelve million, three hundred twenty thousand, twenty-one".