231431053423 has 4 divisors (see below), whose sum is σ = 231432898680. Its totient is φ = 231429208168.

The previous prime is 231431053411. The next prime is 231431053439. The reversal of 231431053423 is 324350134132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231431053423 - 2⁵ = 231431053391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231431053523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719608 + ... + 990301.

It is an arithmetic number, because the mean of its divisors is an integer number (57858224670).

Almost surely, 2^231431053423 is an apocalyptic number.

231431053423 is a deficient number, since it is larger than the sum of its proper divisors (1845257).

231431053423 is a wasteful number, since it uses less digits than its factorization.

231431053423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845256.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 231431053423 its reverse (324350134132), we get a palindrome (555781187555).

The spelling of 231431053423 in words is "two hundred thirty-one billion, four hundred thirty-one million, fifty-three thousand, four hundred twenty-three".