100531307 has 2 divisors, whose sum is σ = 100531308. Its totient is φ = 100531306.

The previous prime is 100531283. The next prime is 100531349. The reversal of 100531307 is 703135001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100531307 - 2⁸ = 100531051 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100531397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50265653 + 50265654.

It is an arithmetic number, because the mean of its divisors is an integer number (50265654).

Almost surely, 2^100531307 is an apocalyptic number.

100531307 is a deficient number, since it is larger than the sum of its proper divisors (1).

100531307 is an equidigital number, since it uses as much as digits as its factorization.

100531307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 100531307 is about 10026.5301575371. The cubic root of 100531307 is about 464.9794680108.

Adding to 100531307 its reverse (703135001), we get a palindrome (803666308).

The spelling of 100531307 in words is "one hundred million, five hundred thirty-one thousand, three hundred seven".