231124123 has 2 divisors, whose sum is σ = 231124124. Its totient is φ = 231124122.

The previous prime is 231124111. The next prime is 231124133. The reversal of 231124123 is 321421132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231124123 - 2¹³ = 231115931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231124123.

It is not a weakly prime, because it can be changed into another prime (231124133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115562061 + 115562062.

It is an arithmetic number, because the mean of its divisors is an integer number (115562062).

Almost surely, 2^231124123 is an apocalyptic number.

231124123 is a deficient number, since it is larger than the sum of its proper divisors (1).

231124123 is an equidigital number, since it uses as much as digits as its factorization.

231124123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 231124123 is about 15202.7669521045. The cubic root of 231124123 is about 613.6891222630.

Adding to 231124123 its reverse (321421132), we get a palindrome (552545255).

The spelling of 231124123 in words is "two hundred thirty-one million, one hundred twenty-four thousand, one hundred twenty-three".