30103112220 has 24 divisors (see below), whose sum is σ = 84288714384. Its totient is φ = 8027496576.

The previous prime is 30103112191. The next prime is 30103112227. The reversal of 30103112220 is 2221130103.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30103112220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30103112227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250859209 + ... + 250859328.

It is an arithmetic number, because the mean of its divisors is an integer number (3512029766).

Almost surely, 2^30103112220 is an apocalyptic number.

30103112220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30103112220 is an abundant number, since it is smaller than the sum of its proper divisors (54185602164).

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

30103112220 is a wasteful number, since it uses less digits than its factorization.

30103112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501718549 (or 501718547 counting only the distinct ones).

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

Adding to 30103112220 its reverse (2221130103), we get a palindrome (32324242323).

The spelling of 30103112220 in words is "thirty billion, one hundred three million, one hundred twelve thousand, two hundred twenty".