100443031 has 8 divisors (see below), whose sum is σ = 109473840. Its totient is φ = 91598592.

The previous prime is 100442977. The next prime is 100443043. The reversal of 100443031 is 130344001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100443031 - 2¹³ = 100434839 is a prime.

It is a super-2 number, since 2×100443031² = 20177604952933922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100442996 and 100443014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100444031) 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 7 ways as a sum of consecutive naturals, for example, 45466 + ... + 47623.

It is an arithmetic number, because the mean of its divisors is an integer number (13684230).

Almost surely, 2^100443031 is an apocalyptic number.

100443031 is a deficient number, since it is larger than the sum of its proper divisors (9030809).

100443031 is an equidigital number, since it uses as much as digits as its factorization.

100443031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93185.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100443031 is about 10022.1270696395. The cubic root of 100443031 is about 464.8433294989.

Adding to 100443031 its reverse (130344001), we get a palindrome (230787032).

The spelling of 100443031 in words is "one hundred million, four hundred forty-three thousand, thirty-one".