231042001 has 4 divisors (see below), whose sum is σ = 231271092. Its totient is φ = 230812912.

The previous prime is 231041983. The next prime is 231042013. The reversal of 231042001 is 100240132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 731025 + 230310976 = 855^2 + 15176^2 .

It is a cyclic number.

It is not a de Polignac number, because 231042001 - 2⁷ = 231041873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231042041) 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, 113026 + ... + 115051.

It is an arithmetic number, because the mean of its divisors is an integer number (57817773).

Almost surely, 2^231042001 is an apocalyptic number.

It is an amenable number.

231042001 is a deficient number, since it is larger than the sum of its proper divisors (229091).

231042001 is a wasteful number, since it uses less digits than its factorization.

231042001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229090.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 231042001 is about 15200.0658222259. The cubic root of 231042001 is about 613.6164292188.

Adding to 231042001 its reverse (100240132), we get a palindrome (331282133).

The spelling of 231042001 in words is "two hundred thirty-one million, forty-two thousand, one".