231383505383133 has 8 divisors (see below), whose sum is σ = 308515891029696. Its totient is φ = 154253394996000.

The previous prime is 231383505383039. The next prime is 231383505383137. The reversal of 231383505383133 is 331383505383132.

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

It is not a de Polignac number, because 231383505383133 - 2¹⁰ = 231383505382109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231383505383137) 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, 568577553 + ... + 568984358.

It is an arithmetic number, because the mean of its divisors is an integer number (38564486378712).

Almost surely, 2^{231383505383133} is an apocalyptic number.

It is an amenable number.

231383505383133 is a deficient number, since it is larger than the sum of its proper divisors (77132385646563).

231383505383133 is a wasteful number, since it uses less digits than its factorization.

231383505383133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137629715.

The product of its (nonzero) digits is 6998400, while the sum is 51.

Subtracting 231383505383133 from its reverse (331383505383132), we obtain a palindrome (99999999999999).

The spelling of 231383505383133 in words is "two hundred thirty-one trillion, three hundred eighty-three billion, five hundred five million, three hundred eighty-three thousand, one hundred thirty-three".