30121321300 has 72 divisors (see below), whose sum is σ = 78632536640. Its totient is φ = 9783763200.

The previous prime is 30121321289. The next prime is 30121321303. The reversal of 30121321300 is 312312103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121321303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1119081 + ... + 1145680.

Almost surely, 2^30121321300 is an apocalyptic number.

It is an amenable number.

30121321300 is an abundant number, since it is smaller than the sum of its proper divisors (48511215340).

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

30121321300 is a wasteful number, since it uses less digits than its factorization.

30121321300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264801 (or 2264794 counting only the distinct ones).

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

Adding to 30121321300 its reverse (312312103), we get a palindrome (30433633403).

The spelling of 30121321300 in words is "thirty billion, one hundred twenty-one million, three hundred twenty-one thousand, three hundred".