131223343044 has 48 divisors (see below), whose sum is σ = 306825989120. Its totient is φ = 43650018720.

The previous prime is 131223343033. The next prime is 131223343093. The reversal of 131223343044 is 440343322131.

It is a happy number.

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, 23947497 + ... + 23952975.

Almost surely, 2^131223343044 is an apocalyptic number.

It is an amenable number.

131223343044 is an abundant number, since it is smaller than the sum of its proper divisors (175602646076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131223343044 is a wasteful number, since it uses less digits than its factorization.

131223343044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9280 (or 9278 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 131223343044 its reverse (440343322131), we get a palindrome (571566665175).

The spelling of 131223343044 in words is "one hundred thirty-one billion, two hundred twenty-three million, three hundred forty-three thousand, forty-four".