100231331 has 2 divisors, whose sum is σ = 100231332. Its totient is φ = 100231330.

The previous prime is 100231253. The next prime is 100231349. The reversal of 100231331 is 133132001.

It is a strong prime.

It is an emirp because it is prime and its reverse (133132001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100231331 - 2¹⁰ = 100230307 is a prime.

It is a super-2 number, since 2×100231331² = 20092639428063122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100231231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50115665 + 50115666.

It is an arithmetic number, because the mean of its divisors is an integer number (50115666).

Almost surely, 2^100231331 is an apocalyptic number.

100231331 is a deficient number, since it is larger than the sum of its proper divisors (1).

100231331 is an equidigital number, since it uses as much as digits as its factorization.

100231331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 100231331 is about 10011.5598684720. The cubic root of 100231331 is about 464.5165221885.

Adding to 100231331 its reverse (133132001), we get a palindrome (233363332).

The spelling of 100231331 in words is "one hundred million, two hundred thirty-one thousand, three hundred thirty-one".