131200243357 has 2 divisors, whose sum is σ = 131200243358. Its totient is φ = 131200243356.

The previous prime is 131200243337. The next prime is 131200243381. The reversal of 131200243357 is 753342002131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101748878361 + 29451364996 = 318981^2 + 171614^2 .

It is a cyclic number.

It is not a de Polignac number, because 131200243357 - 2¹¹ = 131200241309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131200243337) 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 as a sum of consecutive naturals, namely, 65600121678 + 65600121679.

It is an arithmetic number, because the mean of its divisors is an integer number (65600121679).

Almost surely, 2^131200243357 is an apocalyptic number.

It is an amenable number.

131200243357 is a deficient number, since it is larger than the sum of its proper divisors (1).

131200243357 is an equidigital number, since it uses as much as digits as its factorization.

131200243357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 131200243357 its reverse (753342002131), we get a palindrome (884542245488).

The spelling of 131200243357 in words is "one hundred thirty-one billion, two hundred million, two hundred forty-three thousand, three hundred fifty-seven".