131043243554 has 16 divisors (see below), whose sum is σ = 196873146168. Its totient is φ = 65418941952.

The previous prime is 131043243467. The next prime is 131043243559. The reversal of 131043243554 is 455342340131.

It can be written as a sum of positive squares in 4 ways, for example, as 122398521025 + 8644722529 = 349855^2 + 92977^2 .

It is not an unprimeable number, because it can be changed into a prime (131043243559) 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, 3472274 + ... + 3509810.

Almost surely, 2^131043243554 is an apocalyptic number.

131043243554 is a deficient number, since it is larger than the sum of its proper divisors (65829902614).

131043243554 is a wasteful number, since it uses less digits than its factorization.

131043243554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40229.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 131043243554 its reverse (455342340131), we get a palindrome (586385583685).

The spelling of 131043243554 in words is "one hundred thirty-one billion, forty-three million, two hundred forty-three thousand, five hundred fifty-four".