231112431101 has 4 divisors (see below), whose sum is σ = 231181238400. Its totient is φ = 231043623804.

The previous prime is 231112431047. The next prime is 231112431131. The reversal of 231112431101 is 101134211132.

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 a de Polignac number, because none of the positive numbers 2^k-231112431101 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 (231112431131) 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, 34398611 + ... + 34405328.

It is an arithmetic number, because the mean of its divisors is an integer number (57795309600).

Almost surely, 2^231112431101 is an apocalyptic number.

It is an amenable number.

231112431101 is a deficient number, since it is larger than the sum of its proper divisors (68807299).

231112431101 is an equidigital number, since it uses as much as digits as its factorization.

231112431101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68807298.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 231112431101 its reverse (101134211132), we get a palindrome (332246642233).

The spelling of 231112431101 in words is "two hundred thirty-one billion, one hundred twelve million, four hundred thirty-one thousand, one hundred one".