231222011320033 has 4 divisors (see below), whose sum is σ = 233466885216448. Its totient is φ = 228977137423620.

The previous prime is 231222011319997. The next prime is 231222011320043. The reversal of 231222011320033 is 330023110222132.

231222011320033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231222011320033 - 2⁹ = 231222011319521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231222011320043) 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, 1122436948053 + ... + 1122436948258.

It is an arithmetic number, because the mean of its divisors is an integer number (58366721304112).

Almost surely, 2^{231222011320033} is an apocalyptic number.

It is an amenable number.

231222011320033 is a deficient number, since it is larger than the sum of its proper divisors (2244873896415).

231222011320033 is a wasteful number, since it uses less digits than its factorization.

231222011320033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244873896414.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 231222011320033 its reverse (330023110222132), we get a palindrome (561245121542165).

The spelling of 231222011320033 in words is "two hundred thirty-one trillion, two hundred twenty-two billion, eleven million, three hundred twenty thousand, thirty-three".