131242200020993 has 4 divisors (see below), whose sum is σ = 131242239386580. Its totient is φ = 131242160655408.

The previous prime is 131242200020947. The next prime is 131242200021013. The reversal of 131242200020993 is 399020002242131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41792824479169 + 89449375541824 = 6464737^2 + 9457768^2 .

It is a cyclic number.

It is not a de Polignac number, because 131242200020993 - 2¹⁰ = 131242200019969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131242200020293) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14166578 + ... + 21521531.

It is an arithmetic number, because the mean of its divisors is an integer number (32810559846645).

Almost surely, 2^{131242200020993} is an apocalyptic number.

It is an amenable number.

131242200020993 is a deficient number, since it is larger than the sum of its proper divisors (39365587).

131242200020993 is an equidigital number, since it uses as much as digits as its factorization.

131242200020993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39365586.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 131242200020993 in words is "one hundred thirty-one trillion, two hundred forty-two billion, two hundred million, twenty thousand, nine hundred ninety-three".