30191220480 has 144 divisors (see below), whose sum is σ = 100615818240. Its totient is φ = 7700926464.

The previous prime is 30191220469. The next prime is 30191220487. The reversal of 30191220480 is 8402219103.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30191220487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82600 + ... + 259239.

It is an arithmetic number, because the mean of its divisors is an integer number (698720960).

Almost surely, 2^30191220480 is an apocalyptic number.

30191220480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30191220480 is an abundant number, since it is smaller than the sum of its proper divisors (70424597760).

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

30191220480 is a wasteful number, since it uses less digits than its factorization.

30191220480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341886 (or 341872 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 30191220480 its reverse (8402219103), we get a palindrome (38593439583).

The spelling of 30191220480 in words is "thirty billion, one hundred ninety-one million, two hundred twenty thousand, four hundred eighty".