231353613105143 has 4 divisors (see below), whose sum is σ = 231354517944600. Its totient is φ = 231352708265688.

The previous prime is 231353613105089. The next prime is 231353613105151. The reversal of 231353613105143 is 341501316353132.

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 231353613105143 - 2⁴² = 226955566594039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231353613105143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231353613105943) 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, 452036093 + ... + 452547606.

It is an arithmetic number, because the mean of its divisors is an integer number (57838629486150).

Almost surely, 2^{231353613105143} is an apocalyptic number.

231353613105143 is a deficient number, since it is larger than the sum of its proper divisors (904839457).

231353613105143 is an equidigital number, since it uses as much as digits as its factorization.

231353613105143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904839456.

The product of its (nonzero) digits is 291600, while the sum is 41.

Adding to 231353613105143 its reverse (341501316353132), we get a palindrome (572854929458275).

The spelling of 231353613105143 in words is "two hundred thirty-one trillion, three hundred fifty-three billion, six hundred thirteen million, one hundred five thousand, one hundred forty-three".