231451230405 has 16 divisors (see below), whose sum is σ = 371049528960. Its totient is φ = 123198136128.

The previous prime is 231451230323. The next prime is 231451230443. The reversal of 231451230405 is 504032154132.

It is not a de Polignac number, because 231451230405 - 2⁷ = 231451230277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15149617 + ... + 15164886.

It is an arithmetic number, because the mean of its divisors is an integer number (23190595560).

Almost surely, 2^231451230405 is an apocalyptic number.

It is an amenable number.

231451230405 is a deficient number, since it is larger than the sum of its proper divisors (139598298555).

231451230405 is a wasteful number, since it uses less digits than its factorization.

231451230405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30315020.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 231451230405 its reverse (504032154132), we get a palindrome (735483384537).

The spelling of 231451230405 in words is "two hundred thirty-one billion, four hundred fifty-one million, two hundred thirty thousand, four hundred five".