500130031091 has 2 divisors, whose sum is σ = 500130031092. Its totient is φ = 500130031090.

The previous prime is 500130031067. The next prime is 500130031129. The reversal of 500130031091 is 190130031005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 500130031091 - 2¹⁸ = 500129768947 is a prime.

It is not a weakly prime, because it can be changed into another prime (500130039091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250065015545 + 250065015546.

It is an arithmetic number, because the mean of its divisors is an integer number (250065015546).

Almost surely, 2^500130031091 is an apocalyptic number.

500130031091 is a deficient number, since it is larger than the sum of its proper divisors (1).

500130031091 is an equidigital number, since it uses as much as digits as its factorization.

500130031091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 23.

Adding to 500130031091 its reverse (190130031005), we get a palindrome (690260062096).

The spelling of 500130031091 in words is "five hundred billion, one hundred thirty million, thirty-one thousand, ninety-one".