30121232112104 has 96 divisors (see below), whose sum is σ = 65959560668160. Its totient is φ = 12857758300800.

The previous prime is 30121232112077. The next prime is 30121232112131. The reversal of 30121232112104 is 40121123212103.

It is an interprime number because it is at equal distance from previous prime (30121232112077) and next prime (30121232112131).

It is a self number, because there is not a number n which added to its sum of digits gives 30121232112104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303008249 + ... + 303107639.

It is an arithmetic number, because the mean of its divisors is an integer number (687078756960).

Almost surely, 2^{30121232112104} 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 30121232112104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32979780334080).

30121232112104 is an abundant number, since it is smaller than the sum of its proper divisors (35838328556056).

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

30121232112104 is a wasteful number, since it uses less digits than its factorization.

30121232112104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102479 (or 102468 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 30121232112104 its reverse (40121123212103), we get a palindrome (70242355324207).

The spelling of 30121232112104 in words is "thirty trillion, one hundred twenty-one billion, two hundred thirty-two million, one hundred twelve thousand, one hundred four".