231201121233 has 8 divisors (see below), whose sum is σ = 308464392096. Its totient is φ = 154035965600.

The previous prime is 231201121183. The next prime is 231201121237. The reversal of 231201121233 is 332121102132.

231201121233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231201121233 - 2²⁰ = 231200072657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231201121237) 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 7 ways as a sum of consecutive naturals, for example, 24523308 + ... + 24532733.

It is an arithmetic number, because the mean of its divisors is an integer number (38558049012).

Almost surely, 2^231201121233 is an apocalyptic number.

It is an amenable number.

231201121233 is a deficient number, since it is larger than the sum of its proper divisors (77263270863).

231201121233 is a wasteful number, since it uses less digits than its factorization.

231201121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49057615.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231201121233 its reverse (332121102132), we get a palindrome (563322223365).

The spelling of 231201121233 in words is "two hundred thirty-one billion, two hundred one million, one hundred twenty-one thousand, two hundred thirty-three".