30111013020 has 192 divisors, whose sum is σ = 97505565696. Its totient is φ = 6861803520.

The previous prime is 30111012973. The next prime is 30111013033. The reversal of 30111013020 is 2031011103.

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 = 30111012987 and 30111013005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16301737 + ... + 16303583.

It is an arithmetic number, because the mean of its divisors is an integer number (507841488).

Almost surely, 2^30111013020 is an apocalyptic number.

30111013020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30111013020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48752782848).

30111013020 is an abundant number, since it is smaller than the sum of its proper divisors (67394552676).

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

30111013020 is a wasteful number, since it uses less digits than its factorization.

30111013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340 (or 3338 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 30111013020 its reverse (2031011103), we get a palindrome (32142024123).

The spelling of 30111013020 in words is "thirty billion, one hundred eleven million, thirteen thousand, twenty".