120113043021 has 32 divisors (see below), whose sum is σ = 183717504000. Its totient is φ = 77478750720.

The previous prime is 120113042939. The next prime is 120113043077. The reversal of 120113043021 is 120340311021.

120113043021 is a `hidden beast` number, since 1 + 201 + 1 + 30 + 430 + 2 + 1 = 666.

It is not a de Polignac number, because 120113043021 - 2⁷ = 120113042893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120113042985 and 120113043003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120113043521) 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 31 ways as a sum of consecutive naturals, for example, 7398505 + ... + 7414721.

It is an arithmetic number, because the mean of its divisors is an integer number (5741172000).

Almost surely, 2^120113043021 is an apocalyptic number.

It is an amenable number.

120113043021 is a deficient number, since it is larger than the sum of its proper divisors (63604460979).

120113043021 is a wasteful number, since it uses less digits than its factorization.

120113043021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25106 (or 25100 counting only the distinct ones).

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

Adding to 120113043021 its reverse (120340311021), we get a palindrome (240453354042).

The spelling of 120113043021 in words is "one hundred twenty billion, one hundred thirteen million, forty-three thousand, twenty-one".