231550504340123 has 16 divisors (see below), whose sum is σ = 235385765112960. Its totient is φ = 227754935366400.

The previous prime is 231550504340047. The next prime is 231550504340131. The reversal of 231550504340123 is 321043405055132.

It is a cyclic number.

It is not a de Polignac number, because 231550504340123 - 2³⁴ = 231533324470939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231550504370123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8883638 + ... + 23281323.

It is an arithmetic number, because the mean of its divisors is an integer number (14711610319560).

Almost surely, 2^{231550504340123} is an apocalyptic number.

231550504340123 is a deficient number, since it is larger than the sum of its proper divisors (3835260772837).

231550504340123 is a wasteful number, since it uses less digits than its factorization.

231550504340123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32165578.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 231550504340123 its reverse (321043405055132), we get a palindrome (552593909395255).

The spelling of 231550504340123 in words is "two hundred thirty-one trillion, five hundred fifty billion, five hundred four million, three hundred forty thousand, one hundred twenty-three".