100333231 has 2 divisors, whose sum is σ = 100333232. Its totient is φ = 100333230.

The previous prime is 100333229. The next prime is 100333241. The reversal of 100333231 is 132333001.

It is a weak prime.

It is an emirp because it is prime and its reverse (132333001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100333231 - 2¹ = 100333229 is a prime.

It is a super-2 number, since 2×100333231² = 20133514485798722, which contains 22 as substring.

Together with 100333229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100333241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50166615 + 50166616.

It is an arithmetic number, because the mean of its divisors is an integer number (50166616).

Almost surely, 2^100333231 is an apocalyptic number.

100333231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100333231 is an equidigital number, since it uses as much as digits as its factorization.

100333231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 100333231 is about 10016.6476927164. The cubic root of 100333231 is about 464.6738854981.

Adding to 100333231 its reverse (132333001), we get a palindrome (232666232).

The spelling of 100333231 in words is "one hundred million, three hundred thirty-three thousand, two hundred thirty-one".