231443231422 has 16 divisors (see below), whose sum is σ = 376379035200. Its totient is φ = 106103038752.

The previous prime is 231443231333. The next prime is 231443231449. The reversal of 231443231422 is 224132344132.

It is a super-3 number, since 3×231443231422³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29867478 + ... + 29875225.

It is an arithmetic number, because the mean of its divisors is an integer number (23523689700).

Almost surely, 2^231443231422 is an apocalyptic number.

231443231422 is a deficient number, since it is larger than the sum of its proper divisors (144935803778).

231443231422 is a wasteful number, since it uses less digits than its factorization.

231443231422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59742867.

The product of its digits is 27648, while the sum is 31.

Adding to 231443231422 its reverse (224132344132), we get a palindrome (455575575554).

The spelling of 231443231422 in words is "two hundred thirty-one billion, four hundred forty-three million, two hundred thirty-one thousand, four hundred twenty-two".