20303000321 has 8 divisors (see below), whose sum is σ = 20696767488. Its totient is φ = 19912228000.

The previous prime is 20303000309. The next prime is 20303000327. The reversal of 20303000321 is 12300030302.

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-20303000321 is a prime.

It is a super-2 number, since 2×20303000321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20303000296 and 20303000305.

It is not an unprimeable number, because it can be changed into a prime (20303000327) 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, 735020 + ... + 762141.

It is an arithmetic number, because the mean of its divisors is an integer number (2587095936).

Almost surely, 2^20303000321 is an apocalyptic number.

It is an amenable number.

20303000321 is a deficient number, since it is larger than the sum of its proper divisors (393767167).

20303000321 is a wasteful number, since it uses less digits than its factorization.

20303000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497423.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20303000321 its reverse (12300030302), we get a palindrome (32603030623).

The spelling of 20303000321 in words is "twenty billion, three hundred three million, three hundred twenty-one", and thus it is an aban number.