30023233113221 has 4 divisors (see below), whose sum is σ = 30066062262444. Its totient is φ = 29980403964000.

The previous prime is 30023233113103. The next prime is 30023233113229. The reversal of 30023233113221 is 12231133232003.

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 14204230322500 + 15819002790721 = 3768850^2 + 3977311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30023233113221 is a prime.

It is a super-3 number, since 3×30023233113221³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023233113229) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21414573560 + ... + 21414574961.

It is an arithmetic number, because the mean of its divisors is an integer number (7516515565611).

Almost surely, 2^{30023233113221} is an apocalyptic number.

It is an amenable number.

30023233113221 is a deficient number, since it is larger than the sum of its proper divisors (42829149223).

30023233113221 is an equidigital number, since it uses as much as digits as its factorization.

30023233113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42829149222.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 30023233113221 its reverse (12231133232003), we get a palindrome (42254366345224).

The spelling of 30023233113221 in words is "thirty trillion, twenty-three billion, two hundred thirty-three million, one hundred thirteen thousand, two hundred twenty-one".