30121232113333 has 4 divisors (see below), whose sum is σ = 30145982510700. Its totient is φ = 30096481715968.

The previous prime is 30121232113307. The next prime is 30121232113337. The reversal of 30121232113333 is 33331123212103.

It is a happy number.

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 15591702568689 + 14529529544644 = 3948633^2 + 3811762^2 .

It is a cyclic number.

It is not a de Polignac number, because 30121232113333 - 2³³ = 30112642178741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121232113337) 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, 12375196858 + ... + 12375199291.

It is an arithmetic number, because the mean of its divisors is an integer number (7536495627675).

Almost surely, 2^{30121232113333} is an apocalyptic number.

It is an amenable number.

30121232113333 is a deficient number, since it is larger than the sum of its proper divisors (24750397367).

30121232113333 is a wasteful number, since it uses less digits than its factorization.

30121232113333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24750397366.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 30121232113333 its reverse (33331123212103), we get a palindrome (63452355325436).

The spelling of 30121232113333 in words is "thirty trillion, one hundred twenty-one billion, two hundred thirty-two million, one hundred thirteen thousand, three hundred thirty-three".