100223131 has 2 divisors, whose sum is σ = 100223132. Its totient is φ = 100223130.

The previous prime is 100223099. The next prime is 100223141. The reversal of 100223131 is 131322001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100223131 - 2⁵ = 100223099 is a prime.

It is a super-2 number, since 2×100223131² = 20089351974886322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100223141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50111565 + 50111566.

It is an arithmetic number, because the mean of its divisors is an integer number (50111566).

Almost surely, 2^100223131 is an apocalyptic number.

100223131 is a deficient number, since it is larger than the sum of its proper divisors (1).

100223131 is an equidigital number, since it uses as much as digits as its factorization.

100223131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 100223131 is about 10011.1503335031. The cubic root of 100223131 is about 464.5038543620.

Adding to 100223131 its reverse (131322001), we get a palindrome (231545132).

The spelling of 100223131 in words is "one hundred million, two hundred twenty-three thousand, one hundred thirty-one".