30320120232 has 40 divisors (see below), whose sum is σ = 84924412650. Its totient is φ = 10106706528.

The previous prime is 30320120213. The next prime is 30320120251. The reversal of 30320120232 is 23202102303.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30320120213) and next prime (30320120251).

It can be written as a sum of positive squares in only one way, i.e., 30315684996 + 4435236 = 174114^2 + 2106^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 23394507 + ... + 23395802.

Almost surely, 2^30320120232 is an apocalyptic number.

It is an amenable number.

30320120232 is an abundant number, since it is smaller than the sum of its proper divisors (54604292418).

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

30320120232 is a wasteful number, since it uses less digits than its factorization.

30320120232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46790327 (or 46790314 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30320120232 its reverse (23202102303), we get a palindrome (53522222535).

The spelling of 30320120232 in words is "thirty billion, three hundred twenty million, one hundred twenty thousand, two hundred thirty-two".