231115423 has 8 divisors (see below), whose sum is σ = 288144000. Its totient is φ = 180089880.

The previous prime is 231115421. The next prime is 231115429. The reversal of 231115423 is 324511132.

It is a happy number.

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 231115423 - 2¹ = 231115421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231115394 and 231115403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231115421) 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, 1500673 + ... + 1500826.

It is an arithmetic number, because the mean of its divisors is an integer number (36018000).

Almost surely, 2^231115423 is an apocalyptic number.

231115423 is a deficient number, since it is larger than the sum of its proper divisors (57028577).

231115423 is a wasteful number, since it uses less digits than its factorization.

231115423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001517.

The product of its digits is 720, while the sum is 22.

The square root of 231115423 is about 15202.4808172877. The cubic root of 231115423 is about 613.6814219816.

Adding to 231115423 its reverse (324511132), we get a palindrome (555626555).

The spelling of 231115423 in words is "two hundred thirty-one million, one hundred fifteen thousand, four hundred twenty-three".