231104505 has 16 divisors (see below), whose sum is σ = 389229120. Its totient is φ = 116768448.

The previous prime is 231104449. The next prime is 231104519. The reversal of 231104505 is 505401132.

It is not a de Polignac number, because 231104505 - 2⁶ = 231104441 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405162 + ... + 405731.

It is an arithmetic number, because the mean of its divisors is an integer number (24326820).

Almost surely, 2^231104505 is an apocalyptic number.

It is an amenable number.

231104505 is a deficient number, since it is larger than the sum of its proper divisors (158124615).

231104505 is a wasteful number, since it uses less digits than its factorization.

231104505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810920.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 231104505 is about 15202.1217269169. The cubic root of 231104505 is about 613.6717582976.

Adding to 231104505 its reverse (505401132), we get a palindrome (736505637).

The spelling of 231104505 in words is "two hundred thirty-one million, one hundred four thousand, five hundred five".