231141263 has 4 divisors (see below), whose sum is σ = 231260040. Its totient is φ = 231022488.

The previous prime is 231141233. The next prime is 231141269. The reversal of 231141263 is 362141132.

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 231141263 - 2¹⁴ = 231124879 is a prime.

It is a super-2 number, since 2×231141263² = 106852566922470338, which 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 (231141269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56420 + ... + 60377.

It is an arithmetic number, because the mean of its divisors is an integer number (57815010).

Almost surely, 2^231141263 is an apocalyptic number.

231141263 is a deficient number, since it is larger than the sum of its proper divisors (118777).

231141263 is a wasteful number, since it uses less digits than its factorization.

231141263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118776.

The product of its digits is 864, while the sum is 23.

The square root of 231141263 is about 15203.3306548269. The cubic root of 231141263 is about 613.7042921371.

Adding to 231141263 its reverse (362141132), we get a palindrome (593282395).

The spelling of 231141263 in words is "two hundred thirty-one million, one hundred forty-one thousand, two hundred sixty-three".