120303123021 has 20 divisors (see below), whose sum is σ = 183891428512. Its totient is φ = 78336915048.

The previous prime is 120303122999. The next prime is 120303123047. The reversal of 120303123021 is 120321303021.

120303123021 is a `hidden beast` number, since 1 + 20 + 30 + 312 + 302 + 1 = 666.

It is not a de Polignac number, because 120303123021 - 2⁹ = 120303122509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120303122985 and 120303123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120303123221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17266561 + ... + 17273526.

Almost surely, 2^120303123021 is an apocalyptic number.

It is an amenable number.

120303123021 is a deficient number, since it is larger than the sum of its proper divisors (63588305491).

120303123021 is an equidigital number, since it uses as much as digits as its factorization.

120303123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34540142 (or 34540133 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 120303123021 its reverse (120321303021), we get a palindrome (240624426042).

The spelling of 120303123021 in words is "one hundred twenty billion, three hundred three million, one hundred twenty-three thousand, twenty-one".