30300012021121 has 4 divisors (see below), whose sum is σ = 30600012140244. Its totient is φ = 30000011902000.

The previous prime is 30300012021107. The next prime is 30300012021133. The reversal of 30300012021121 is 12112021000303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27676700548225 + 2623311472896 = 5260865^2 + 1619664^2 .

It is a cyclic number.

It is not a de Polignac number, because 30300012021121 - 2⁵ = 30300012021089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30300012021095 and 30300012021104.

It is not an unprimeable number, because it can be changed into a prime (30300012021101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150000059410 + ... + 150000059611.

It is an arithmetic number, because the mean of its divisors is an integer number (7650003035061).

Almost surely, 2^{30300012021121} is an apocalyptic number.

It is an amenable number.

30300012021121 is a deficient number, since it is larger than the sum of its proper divisors (300000119123).

30300012021121 is a wasteful number, since it uses less digits than its factorization.

30300012021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300000119122.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30300012021121 its reverse (12112021000303), we get a palindrome (42412033021424).

The spelling of 30300012021121 in words is "thirty trillion, three hundred billion, twelve million, twenty-one thousand, one hundred twenty-one".