13233230312021 has 4 divisors (see below), whose sum is σ = 13272498058092. Its totient is φ = 13193962565952.

The previous prime is 13233230312017. The next prime is 13233230312039. The reversal of 13233230312021 is 12021303233231.

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 9661466724100 + 3571763587921 = 3108290^2 + 1889911^2 .

It is a cyclic number.

It is not a de Polignac number, because 13233230312021 - 2² = 13233230312017 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 (13233230312051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19633872530 + ... + 19633873203.

It is an arithmetic number, because the mean of its divisors is an integer number (3318124514523).

Almost surely, 2^{13233230312021} is an apocalyptic number.

It is an amenable number.

13233230312021 is a deficient number, since it is larger than the sum of its proper divisors (39267746071).

13233230312021 is an equidigital number, since it uses as much as digits as its factorization.

13233230312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39267746070.

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

Adding to 13233230312021 its reverse (12021303233231), we get a palindrome (25254533545252).

The spelling of 13233230312021 in words is "thirteen trillion, two hundred thirty-three billion, two hundred thirty million, three hundred twelve thousand, twenty-one".