30203002020 has 48 divisors (see below), whose sum is σ = 84718710720. Its totient is φ = 8039819136.

The previous prime is 30203001971. The next prime is 30203002021. The reversal of 30203002020 is 2020030203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30203001987 and 30203002005.

It is not an unprimeable number, because it can be changed into a prime (30203002021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413275 + ... + 480834.

It is an arithmetic number, because the mean of its divisors is an integer number (1764973140).

Almost surely, 2^30203002020 is an apocalyptic number.

30203002020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30203002020 is an abundant number, since it is smaller than the sum of its proper divisors (54515708700).

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

30203002020 is a wasteful number, since it uses less digits than its factorization.

30203002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894684 (or 894682 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30203002020 its reverse (2020030203), we get a palindrome (32223032223).

The spelling of 30203002020 in words is "thirty billion, two hundred three million, two thousand, twenty".