30133331220 has 48 divisors (see below), whose sum is σ = 85147413120. Its totient is φ = 7961832576.

The previous prime is 30133331213. The next prime is 30133331273. The reversal of 30133331220 is 2213333103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2297232 + ... + 2310311.

It is an arithmetic number, because the mean of its divisors is an integer number (1773904440).

Almost surely, 2^30133331220 is an apocalyptic number.

30133331220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30133331220 is an abundant number, since it is smaller than the sum of its proper divisors (55014081900).

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

30133331220 is a wasteful number, since it uses less digits than its factorization.

30133331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607664 (or 4607662 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30133331220 its reverse (2213333103), we get a palindrome (32346664323).

The spelling of 30133331220 in words is "thirty billion, one hundred thirty-three million, three hundred thirty-one thousand, two hundred twenty".