302020013220 has 96 divisors (see below), whose sum is σ = 878976137088. Its totient is φ = 77417782272.

The previous prime is 302020013167. The next prime is 302020013221. The reversal of 302020013220 is 22310020203.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 302020013220.

It is not an unprimeable number, because it can be changed into a prime (302020013221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635289 + ... + 1003808.

It is an arithmetic number, because the mean of its divisors is an integer number (9156001428).

Almost surely, 2^302020013220 is an apocalyptic number.

302020013220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

302020013220 is an abundant number, since it is smaller than the sum of its proper divisors (576956123868).

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

302020013220 is a wasteful number, since it uses less digits than its factorization.

302020013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639229 (or 1639227 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 302020013220 its reverse (22310020203), we get a palindrome (324330033423).

The spelling of 302020013220 in words is "three hundred two billion, twenty million, thirteen thousand, two hundred twenty".