100223231 has 2 divisors, whose sum is σ = 100223232. Its totient is φ = 100223230.

The previous prime is 100223219. The next prime is 100223243. The reversal of 100223231 is 132322001.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (100223219) and next prime (100223243).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100223231 is a prime.

It is a super-2 number, since 2×100223231² = 20089392064158722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100223281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50111615 + 50111616.

It is an arithmetic number, because the mean of its divisors is an integer number (50111616).

Almost surely, 2^100223231 is an apocalyptic number.

100223231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100223231 is an equidigital number, since it uses as much as digits as its factorization.

100223231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 100223231 is about 10011.1553279329. The cubic root of 100223231 is about 464.5040088518.

Adding to 100223231 its reverse (132322001), we get a palindrome (232545232).

The spelling of 100223231 in words is "one hundred million, two hundred twenty-three thousand, two hundred thirty-one".