120043113021 has 20 divisors (see below), whose sum is σ = 193117792252. Its totient is φ = 73872684288.

The previous prime is 120043113019. The next prime is 120043113049. The reversal of 120043113021 is 120311340021.

120043113021 is a `hidden beast` number, since 1 + 200 + 431 + 1 + 30 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6870752100 + 113172360921 = 82890^2 + 336411^2 .

It is not a de Polignac number, because 120043113021 - 2¹ = 120043113019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120043112985 and 120043113003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120043013021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56999476 + ... + 57001581.

Almost surely, 2^120043113021 is an apocalyptic number.

It is an amenable number.

120043113021 is a deficient number, since it is larger than the sum of its proper divisors (73074679231).

120043113021 is a wasteful number, since it uses less digits than its factorization.

120043113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114001082 (or 114001073 counting only the distinct ones).

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

Adding to 120043113021 its reverse (120311340021), we get a palindrome (240354453042).

The spelling of 120043113021 in words is "one hundred twenty billion, forty-three million, one hundred thirteen thousand, twenty-one".