30031112020 has 96 divisors (see below), whose sum is σ = 77683850496. Its totient is φ = 9496396800.

The previous prime is 30031112011. The next prime is 30031112053. The reversal of 30031112020 is 2021113003.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2397975 + ... + 2410465.

It is an arithmetic number, because the mean of its divisors is an integer number (809206776).

Almost surely, 2^30031112020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30031112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38841925248).

30031112020 is an abundant number, since it is smaller than the sum of its proper divisors (47652738476).

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

30031112020 is a wasteful number, since it uses less digits than its factorization.

30031112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13841 (or 13839 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30031112020 its reverse (2021113003), we get a palindrome (32052225023).

The spelling of 30031112020 in words is "thirty billion, thirty-one million, one hundred twelve thousand, twenty".