30431310220 has 24 divisors (see below), whose sum is σ = 64859571504. Its totient is φ = 11990844096.

The previous prime is 30431310193. The next prime is 30431310229. The reversal of 30431310220 is 2201313403.

It is not an unprimeable number, because it can be changed into a prime (30431310229) 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, 11353627 + ... + 11356306.

It is an arithmetic number, because the mean of its divisors is an integer number (2702482146).

Almost surely, 2^30431310220 is an apocalyptic number.

It is an amenable number.

30431310220 is an abundant number, since it is smaller than the sum of its proper divisors (34428261284).

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

30431310220 is a wasteful number, since it uses less digits than its factorization.

30431310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22710009 (or 22710007 counting only the distinct ones).

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

Adding to 30431310220 its reverse (2201313403), we get a palindrome (32632623623).

The spelling of 30431310220 in words is "thirty billion, four hundred thirty-one million, three hundred ten thousand, two hundred twenty".