231422233144444 has 24 divisors (see below), whose sum is σ = 414407979265280. Its totient is φ = 113019962764464.

The previous prime is 231422233144441. The next prime is 231422233144519. The reversal of 231422233144444 is 444441332224132.

It is a super-2 number, since 2×231422233144444² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 231422233144444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231422233144441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168070237 + ... + 169441579.

Almost surely, 2^{231422233144444} is an apocalyptic number.

It is an amenable number.

231422233144444 is a deficient number, since it is larger than the sum of its proper divisors (182985746120836).

231422233144444 is a wasteful number, since it uses less digits than its factorization.

231422233144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352529 (or 2352527 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 43.

Adding to 231422233144444 its reverse (444441332224132), we get a palindrome (675863565368576).

The spelling of 231422233144444 in words is "two hundred thirty-one trillion, four hundred twenty-two billion, two hundred thirty-three million, one hundred forty-four thousand, four hundred forty-four".