231011000221 has 8 divisors (see below), whose sum is σ = 231845119904. Its totient is φ = 230177006640.

The previous prime is 231011000203. The next prime is 231011000237. The reversal of 231011000221 is 122000110132.

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 231011000221 - 2¹³ = 231010992029 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 (231011000251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5184166 + ... + 5228536.

It is an arithmetic number, because the mean of its divisors is an integer number (28980639988).

Almost surely, 2^231011000221 is an apocalyptic number.

It is an amenable number.

231011000221 is a deficient number, since it is larger than the sum of its proper divisors (834119683).

231011000221 is a wasteful number, since it uses less digits than its factorization.

231011000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63051.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 231011000221 its reverse (122000110132), we get a palindrome (353011110353).

The spelling of 231011000221 in words is "two hundred thirty-one billion, eleven million, two hundred twenty-one", and thus it is an aban number.