30231100220 has 24 divisors (see below), whose sum is σ = 63529245024. Its totient is φ = 12084071616.

The previous prime is 30231100213. The next prime is 30231100223. The reversal of 30231100220 is 2200113203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30231100195 and 30231100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231100223) 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, 493367 + ... + 551246.

It is an arithmetic number, because the mean of its divisors is an integer number (2647051876).

Almost surely, 2^30231100220 is an apocalyptic number.

It is an amenable number.

30231100220 is an abundant number, since it is smaller than the sum of its proper divisors (33298144804).

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

30231100220 is a wasteful number, since it uses less digits than its factorization.

30231100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046069 (or 1046067 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30231100220 its reverse (2200113203), we get a palindrome (32431213423).

The spelling of 30231100220 in words is "thirty billion, two hundred thirty-one million, one hundred thousand, two hundred twenty".