30013121232 has 60 divisors (see below), whose sum is σ = 84182307300. Its totient is φ = 9982070784.

The previous prime is 30013121219. The next prime is 30013121249. The reversal of 30013121232 is 23212131003.

30013121232 is a `hidden beast` number, since 300 + 13 + 121 + 232 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19857319056 + 10155802176 = 140916^2 + 100776^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167443 + ... + 296754.

It is an arithmetic number, because the mean of its divisors is an integer number (1403038455).

Almost surely, 2^30013121232 is an apocalyptic number.

It is an amenable number.

30013121232 is an abundant number, since it is smaller than the sum of its proper divisors (54169186068).

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

30013121232 is a wasteful number, since it uses less digits than its factorization.

30013121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464660 (or 464651 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30013121232 its reverse (23212131003), we get a palindrome (53225252235).

The spelling of 30013121232 in words is "thirty billion, thirteen million, one hundred twenty-one thousand, two hundred thirty-two".