30203122020 has 48 divisors (see below), whose sum is σ = 84869745408. Its totient is φ = 8025498880.

The previous prime is 30203122013. The next prime is 30203122049. The reversal of 30203122020 is 2022130203.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878844 + ... + 912563.

It is an arithmetic number, because the mean of its divisors is an integer number (1768119696).

Almost surely, 2^30203122020 is an apocalyptic number.

30203122020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30203122020 is an abundant number, since it is smaller than the sum of its proper divisors (54666623388).

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

30203122020 is a wasteful number, since it uses less digits than its factorization.

30203122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791700 (or 1791698 counting only the distinct ones).

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

Adding to 30203122020 its reverse (2022130203), we get a palindrome (32225252223).

The spelling of 30203122020 in words is "thirty billion, two hundred three million, one hundred twenty-two thousand, twenty".