30121013000320 has 128 divisors (see below), whose sum is σ = 78557508504000. Its totient is φ = 10952638894080.

The previous prime is 30121013000303. The next prime is 30121013000359. The reversal of 30121013000320 is 2300031012103.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30121013000294 and 30121013000303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200910027 + ... + 201059893.

Almost surely, 2^{30121013000320} is an apocalyptic number.

It is an amenable number.

30121013000320 is an abundant number, since it is smaller than the sum of its proper divisors (48436495503680).

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

30121013000320 is a wasteful number, since it uses less digits than its factorization.

30121013000320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178446 (or 178434 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30121013000320 its reverse (2300031012103), we get a palindrome (32421044012423).

The spelling of 30121013000320 in words is "thirty trillion, one hundred twenty-one billion, thirteen million, three hundred twenty", and thus it is an aban number.