30471220500 has 384 divisors, whose sum is σ = 106744974336. Its totient is φ = 6607872000.

The previous prime is 30471220469. The next prime is 30471220513. The reversal of 30471220500 is 502217403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15927544 + ... + 15929456.

It is an arithmetic number, because the mean of its divisors is an integer number (277981704).

Almost surely, 2^30471220500 is an apocalyptic number.

30471220500 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 30471220500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53372487168).

30471220500 is an abundant number, since it is smaller than the sum of its proper divisors (76273753836).

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

30471220500 is a wasteful number, since it uses less digits than its factorization.

30471220500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020 (or 2008 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

Adding to 30471220500 its reverse (502217403), we get a palindrome (30973437903).

The spelling of 30471220500 in words is "thirty billion, four hundred seventy-one million, two hundred twenty thousand, five hundred".