231513454510423 has 4 divisors (see below), whose sum is σ = 231523679037528. Its totient is φ = 231503229983320.

The previous prime is 231513454510397. The next prime is 231513454510439. The reversal of 231513454510423 is 324015454315132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231513454510423 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 231513454510423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231513454510463) 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, 5112229588 + ... + 5112274873.

It is an arithmetic number, because the mean of its divisors is an integer number (57880919759382).

Almost surely, 2^{231513454510423} is an apocalyptic number.

231513454510423 is a deficient number, since it is larger than the sum of its proper divisors (10224527105).

231513454510423 is a wasteful number, since it uses less digits than its factorization.

231513454510423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10224527104.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 231513454510423 in words is "two hundred thirty-one trillion, five hundred thirteen billion, four hundred fifty-four million, five hundred ten thousand, four hundred twenty-three".