30111232020 has 24 divisors (see below), whose sum is σ = 84311449824. Its totient is φ = 8029661856.

The previous prime is 30111232003. The next prime is 30111232033. The reversal of 30111232020 is 2023211103.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250926874 + ... + 250926993.

It is an arithmetic number, because the mean of its divisors is an integer number (3512977076).

Almost surely, 2^30111232020 is an apocalyptic number.

30111232020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30111232020 is an abundant number, since it is smaller than the sum of its proper divisors (54200217804).

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

30111232020 is a wasteful number, since it uses less digits than its factorization.

30111232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501853879 (or 501853877 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30111232020 its reverse (2023211103), we get a palindrome (32134443123).

The spelling of 30111232020 in words is "thirty billion, one hundred eleven million, two hundred thirty-two thousand, twenty".