30310003220 has 96 divisors (see below), whose sum is σ = 73950229248. Its totient is φ = 10221023232.

The previous prime is 30310003201. The next prime is 30310003247. The reversal of 30310003220 is 2230001303.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 30310003195 and 30310003204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2206694 + ... + 2220386.

It is an arithmetic number, because the mean of its divisors is an integer number (770314888).

Almost surely, 2^30310003220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30310003220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36975114624).

30310003220 is an abundant number, since it is smaller than the sum of its proper divisors (43640226028).

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

30310003220 is a wasteful number, since it uses less digits than its factorization.

30310003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13969 (or 13967 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 30310003220 its reverse (2230001303), we get a palindrome (32540004523).

The spelling of 30310003220 in words is "thirty billion, three hundred ten million, three thousand, two hundred twenty".