100231263 has 80 divisors (see below), whose sum is σ = 175355136. Its totient is φ = 56453760.

The previous prime is 100231253. The next prime is 100231331. The reversal of 100231263 is 362132001.

It is not a de Polignac number, because 100231263 - 2⁵ = 100231231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1372995 + ... + 1373067.

Almost surely, 2^100231263 is an apocalyptic number.

100231263 is a deficient number, since it is larger than the sum of its proper divisors (75123873).

100231263 is a wasteful number, since it uses less digits than its factorization.

100231263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 100231263 is about 10011.5564723973. The cubic root of 100231263 is about 464.5164171411.

Adding to 100231263 its reverse (362132001), we get a palindrome (462363264).

The spelling of 100231263 in words is "one hundred million, two hundred thirty-one thousand, two hundred sixty-three".