231553353310243 has 4 divisors (see below), whose sum is σ = 231553383752808. Its totient is φ = 231553322867680.

The previous prime is 231553353310241. The next prime is 231553353310267. The reversal of 231553353310243 is 342013353355132.

231553353310243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 231553353310243 - 2¹ = 231553353310241 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 231553353310243.

It is not an unprimeable number, because it can be changed into a prime (231553353310241) 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, 7061403 + ... + 22648843.

It is an arithmetic number, because the mean of its divisors is an integer number (57888345938202).

Almost surely, 2^{231553353310243} is an apocalyptic number.

231553353310243 is a deficient number, since it is larger than the sum of its proper divisors (30442565).

231553353310243 is a wasteful number, since it uses less digits than its factorization.

231553353310243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30442564.

The product of its (nonzero) digits is 1458000, while the sum is 43.

The spelling of 231553353310243 in words is "two hundred thirty-one trillion, five hundred fifty-three billion, three hundred fifty-three million, three hundred ten thousand, two hundred forty-three".