20303001216 has 80 divisors (see below), whose sum is σ = 60421433490. Its totient is φ = 6767663616.

The previous prime is 20303001167. The next prime is 20303001221. The reversal of 20303001216 is 61210030302.

It can be written as a sum of positive squares in only one way, i.e., 13387415616 + 6915585600 = 115704^2 + 83160^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 968751 + ... + 989486.

Almost surely, 2^20303001216 is an apocalyptic number.

It is an amenable number.

20303001216 is an abundant number, since it is smaller than the sum of its proper divisors (40118432274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303001216 is an equidigital number, since it uses as much as digits as its factorization.

20303001216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958263 (or 1958242 counting only the distinct ones).

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

Adding to 20303001216 its reverse (61210030302), we get a palindrome (81513031518).

The spelling of 20303001216 in words is "twenty billion, three hundred three million, one thousand, two hundred sixteen".