131023100203 has 2 divisors, whose sum is σ = 131023100204. Its totient is φ = 131023100202.

The previous prime is 131023100191. The next prime is 131023100237. The reversal of 131023100203 is 302001320131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131023100203 - 2²¹ = 131021003051 is a prime.

It is not a weakly prime, because it can be changed into another prime (131023104203) 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, 65511550101 + 65511550102.

It is an arithmetic number, because the mean of its divisors is an integer number (65511550102).

Almost surely, 2^131023100203 is an apocalyptic number.

131023100203 is a deficient number, since it is larger than the sum of its proper divisors (1).

131023100203 is an equidigital number, since it uses as much as digits as its factorization.

131023100203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 131023100203 its reverse (302001320131), we get a palindrome (433024420334).

The spelling of 131023100203 in words is "one hundred thirty-one billion, twenty-three million, one hundred thousand, two hundred three".