100431323 has 4 divisors (see below), whose sum is σ = 100786488. Its totient is φ = 100076160.

The previous prime is 100431313. The next prime is 100431337. The reversal of 100431323 is 323134001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323134001 = 313 ⋅1032377.

It is a cyclic number.

It is not a de Polignac number, because 100431323 - 2⁶ = 100431259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100431313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177158 + ... + 177723.

It is an arithmetic number, because the mean of its divisors is an integer number (25196622).

Almost surely, 2^100431323 is an apocalyptic number.

100431323 is a deficient number, since it is larger than the sum of its proper divisors (355165).

100431323 is an equidigital number, since it uses as much as digits as its factorization.

100431323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355164.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 100431323 is about 10021.5429450759. The cubic root of 100431323 is about 464.8252675284.

Adding to 100431323 its reverse (323134001), we get a palindrome (423565324).

The spelling of 100431323 in words is "one hundred million, four hundred thirty-one thousand, three hundred twenty-three".