30231132220 has 24 divisors (see below), whose sum is σ = 63508738608. Its totient is φ = 12088003200.

The previous prime is 30231132187. The next prime is 30231132221. The reversal of 30231132220 is 2223113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231132221) 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, 222121 + ... + 331360.

It is an arithmetic number, because the mean of its divisors is an integer number (2646197442).

Almost surely, 2^30231132220 is an apocalyptic number.

It is an amenable number.

30231132220 is an abundant number, since it is smaller than the sum of its proper divisors (33277606388).

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

30231132220 is a wasteful number, since it uses less digits than its factorization.

30231132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556221 (or 556219 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30231132220 its reverse (2223113203), we get a palindrome (32454245423).

The spelling of 30231132220 in words is "thirty billion, two hundred thirty-one million, one hundred thirty-two thousand, two hundred twenty".