303030100021 has 32 divisors (see below), whose sum is σ = 338551819776. Its totient is φ = 268894080000.

The previous prime is 303030100003. The next prime is 303030100111. The reversal of 303030100021 is 120001030303.

It is a cyclic number.

It is not a de Polignac number, because 303030100021 - 2⁹ = 303030099509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303030099974 and 303030100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303030103021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189748795 + ... + 189750391.

It is an arithmetic number, because the mean of its divisors is an integer number (10579744368).

Almost surely, 2^303030100021 is an apocalyptic number.

It is an amenable number.

303030100021 is a deficient number, since it is larger than the sum of its proper divisors (35521719755).

303030100021 is a wasteful number, since it uses less digits than its factorization.

303030100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 303030100021 its reverse (120001030303), we get a palindrome (423031130324).

The spelling of 303030100021 in words is "three hundred three billion, thirty million, one hundred thousand, twenty-one".