231043221055 has 8 divisors (see below), whose sum is σ = 278688404592. Its totient is φ = 183876883968.

The previous prime is 231043221029. The next prime is 231043221077. The reversal of 231043221055 is 550122340132.

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 231043221055 - 2⁷ = 231043220927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119710549 + ... + 119712478.

It is an arithmetic number, because the mean of its divisors is an integer number (34836050574).

Almost surely, 2^231043221055 is an apocalyptic number.

231043221055 is a deficient number, since it is larger than the sum of its proper divisors (47645183537).

231043221055 is a wasteful number, since it uses less digits than its factorization.

231043221055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239423225.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 231043221055 its reverse (550122340132), we get a palindrome (781165561187).

The spelling of 231043221055 in words is "two hundred thirty-one billion, forty-three million, two hundred twenty-one thousand, fifty-five".