231104031143 has 4 divisors (see below), whose sum is σ = 235021048680. Its totient is φ = 227187013608.

The previous prime is 231104031139. The next prime is 231104031199. The reversal of 231104031143 is 341130401132.

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 231104031143 - 2² = 231104031139 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 (231104031133) 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, 1958508680 + ... + 1958508797.

It is an arithmetic number, because the mean of its divisors is an integer number (58755262170).

Almost surely, 2^231104031143 is an apocalyptic number.

231104031143 is a deficient number, since it is larger than the sum of its proper divisors (3917017537).

231104031143 is an equidigital number, since it uses as much as digits as its factorization.

231104031143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917017536.

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

Adding to 231104031143 its reverse (341130401132), we get a palindrome (572234432275).

The spelling of 231104031143 in words is "two hundred thirty-one billion, one hundred four million, thirty-one thousand, one hundred forty-three".