231112001 has 8 divisors (see below), whose sum is σ = 232918920. Its totient is φ = 229312512.

The previous prime is 231111997. The next prime is 231112003. The reversal of 231112001 is 100211132.

It can be written as a sum of positive squares in 4 ways, for example, as 801025 + 230310976 = 895^2 + 15176^2 .

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 231112001 - 2² = 231111997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231112003) 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, 71345 + ... + 74513.

It is an arithmetic number, because the mean of its divisors is an integer number (29114865).

Almost surely, 2^231112001 is an apocalyptic number.

It is an amenable number.

231112001 is a deficient number, since it is larger than the sum of its proper divisors (1806919).

231112001 is a wasteful number, since it uses less digits than its factorization.

231112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 231112001 is about 15202.3682694507. The cubic root of 231112001 is about 613.6783931513.

Adding to 231112001 its reverse (100211132), we get a palindrome (331323133).

The spelling of 231112001 in words is "two hundred thirty-one million, one hundred twelve thousand, one".