30121333320 has 64 divisors (see below), whose sum is σ = 97315081920. Its totient is φ = 7414481664.

The previous prime is 30121333309. The next prime is 30121333337. The reversal of 30121333320 is 2333312103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9652714 + ... + 9655833.

It is an arithmetic number, because the mean of its divisors is an integer number (1520548155).

Almost surely, 2^30121333320 is an apocalyptic number.

30121333320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30121333320 is an abundant number, since it is smaller than the sum of its proper divisors (67193748600).

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

30121333320 is a wasteful number, since it uses less digits than its factorization.

30121333320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19308574 (or 19308570 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30121333320 its reverse (2333312103), we get a palindrome (32454645423).

The spelling of 30121333320 in words is "thirty billion, one hundred twenty-one million, three hundred thirty-three thousand, three hundred twenty".