231533533253233 has 12 divisors (see below), whose sum is σ = 240381892505088. Its totient is φ = 222963834712920.

The previous prime is 231533533253179. The next prime is 231533533253287. The reversal of 231533533253233 is 332352335335132.

It is an interprime number because it is at equal distance from previous prime (231533533253179) and next prime (231533533253287).

It is not a de Polignac number, because 231533533253233 - 2¹³ = 231533533245041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231533533253293) 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 11 ways as a sum of consecutive naturals, for example, 881706385 + ... + 881968942.

It is an arithmetic number, because the mean of its divisors is an integer number (20031824375424).

Almost surely, 2^{231533533253233} is an apocalyptic number.

It is an amenable number.

231533533253233 is a deficient number, since it is larger than the sum of its proper divisors (8848359251855).

231533533253233 is an equidigital number, since it uses as much as digits as its factorization.

231533533253233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763675484 (or 1763675441 counting only the distinct ones).

The product of its digits is 6561000, while the sum is 46.

Adding to 231533533253233 its reverse (332352335335132), we get a palindrome (563885868588365).

The spelling of 231533533253233 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, five hundred thirty-three million, two hundred fifty-three thousand, two hundred thirty-three".