131200233193 has 4 divisors (see below), whose sum is σ = 131201089348. Its totient is φ = 131199377040.

The previous prime is 131200233079. The next prime is 131200233211. The reversal of 131200233193 is 391332002131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 77266209024 + 53934024169 = 277968^2 + 232237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131200233193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131200203193) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 128178 + ... + 528043.

It is an arithmetic number, because the mean of its divisors is an integer number (32800272337).

Almost surely, 2^131200233193 is an apocalyptic number.

It is an amenable number.

131200233193 is a deficient number, since it is larger than the sum of its proper divisors (856155).

131200233193 is an equidigital number, since it uses as much as digits as its factorization.

131200233193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856154.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 131200233193 in words is "one hundred thirty-one billion, two hundred million, two hundred thirty-three thousand, one hundred ninety-three".