231531454523111 has 8 divisors (see below), whose sum is σ = 237797432683440. Its totient is φ = 225265916956608.

The previous prime is 231531454523099. The next prime is 231531454523119. The reversal of 231531454523111 is 111325454135132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231531454523111 - 2³⁴ = 231514274653927 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 (231531454523119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109083101 + ... + 111185366.

It is an arithmetic number, because the mean of its divisors is an integer number (29724679085430).

Almost surely, 2^{231531454523111} is an apocalyptic number.

231531454523111 is a deficient number, since it is larger than the sum of its proper divisors (6265978160329).

231531454523111 is a wasteful number, since it uses less digits than its factorization.

231531454523111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220296913.

The product of its digits is 216000, while the sum is 41.

The spelling of 231531454523111 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, four hundred fifty-four million, five hundred twenty-three thousand, one hundred eleven".