303120200021 has 8 divisors (see below), whose sum is σ = 308849376384. Its totient is φ = 297391391440.

The previous prime is 303120199997. The next prime is 303120200077. The reversal of 303120200021 is 120002021303.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-303120200021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303120199969 and 303120200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303120206021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030480 + ... + 2174646.

It is an arithmetic number, because the mean of its divisors is an integer number (38606172048).

Almost surely, 2^303120200021 is an apocalyptic number.

It is an amenable number.

303120200021 is a deficient number, since it is larger than the sum of its proper divisors (5729176363).

303120200021 is a wasteful number, since it uses less digits than its factorization.

303120200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183891.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 303120200021 its reverse (120002021303), we get a palindrome (423122221324).

The spelling of 303120200021 in words is "three hundred three billion, one hundred twenty million, two hundred thousand, twenty-one".