100500131 has 2 divisors, whose sum is σ = 100500132. Its totient is φ = 100500130.

The previous prime is 100500121. The next prime is 100500157. The reversal of 100500131 is 131005001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100500131 - 2¹⁸ = 100237987 is a prime.

It is a super-2 number, since 2×100500131² = 20200552662034322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (100500121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50250065 + 50250066.

It is an arithmetic number, because the mean of its divisors is an integer number (50250066).

Almost surely, 2^100500131 is an apocalyptic number.

100500131 is a deficient number, since it is larger than the sum of its proper divisors (1).

100500131 is an equidigital number, since it uses as much as digits as its factorization.

100500131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 100500131 is about 10024.9753615657. The cubic root of 100500131 is about 464.9313977494.

Adding to 100500131 its reverse (131005001), we get a palindrome (231505132).

The spelling of 100500131 in words is "one hundred million, five hundred thousand, one hundred thirty-one".