131255343028 has 6 divisors (see below), whose sum is σ = 229696850306. Its totient is φ = 65627671512.

The previous prime is 131255342987. The next prime is 131255343083. The reversal of 131255343028 is 820343552131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 82885258404 + 48370084624 = 287898^2 + 219932^2 .

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 as a sum of consecutive naturals, namely, 16406917875 + ... + 16406917882.

Almost surely, 2^131255343028 is an apocalyptic number.

It is an amenable number.

131255343028 is a deficient number, since it is larger than the sum of its proper divisors (98441507278).

131255343028 is a wasteful number, since it uses less digits than its factorization.

131255343028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32813835761 (or 32813835759 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 131255343028 its reverse (820343552131), we get a palindrome (951598895159).

The spelling of 131255343028 in words is "one hundred thirty-one billion, two hundred fifty-five million, three hundred forty-three thousand, twenty-eight".