30011003220 has 144 divisors (see below), whose sum is σ = 95550094080. Its totient is φ = 7024469760.

The previous prime is 30011003219. The next prime is 30011003233. The reversal of 30011003220 is 2230011003.

It is a happy number.

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 = 30011003196 and 30011003205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139269 + ... + 281811.

It is an arithmetic number, because the mean of its divisors is an integer number (663542320).

Almost surely, 2^30011003220 is an apocalyptic number.

30011003220 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 30011003220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47775047040).

30011003220 is an abundant number, since it is smaller than the sum of its proper divisors (65539090860).

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

30011003220 is a wasteful number, since it uses less digits than its factorization.

30011003220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142606 (or 142593 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30011003220 its reverse (2230011003), we get a palindrome (32241014223).

The spelling of 30011003220 in words is "thirty billion, eleven million, three thousand, two hundred twenty".