231101000231 has 4 divisors (see below), whose sum is σ = 231382488264. Its totient is φ = 230819512200.

The previous prime is 231101000227. The next prime is 231101000257. The reversal of 231101000231 is 132000101132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231101000231 - 2² = 231101000227 is a prime.

It is a super-2 number, since 2×231101000231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231101000831) 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, 140742785 + ... + 140744426.

It is an arithmetic number, because the mean of its divisors is an integer number (57845622066).

Almost surely, 2^231101000231 is an apocalyptic number.

231101000231 is a deficient number, since it is larger than the sum of its proper divisors (281488033).

231101000231 is an equidigital number, since it uses as much as digits as its factorization.

231101000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281488032.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 231101000231 its reverse (132000101132), we get a palindrome (363101101363).

The spelling of 231101000231 in words is "two hundred thirty-one billion, one hundred one million, two hundred thirty-one", and thus it is an aban number.