100343243 has 36 divisors (see below), whose sum is σ = 136687824. Its totient is φ = 72072000.

The previous prime is 100343239. The next prime is 100343251. The reversal of 100343243 is 342343001.

It is not a de Polignac number, because 100343243 - 2² = 100343239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100343203) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 142793 + ... + 143493.

It is an arithmetic number, because the mean of its divisors is an integer number (3796884).

Almost surely, 2^100343243 is an apocalyptic number.

100343243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100343243 is a deficient number, since it is larger than the sum of its proper divisors (36344581).

100343243 is a wasteful number, since it uses less digits than its factorization.

100343243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 100343243 is about 10017.1474482509. The cubic root of 100343243 is about 464.6893411956.

Adding to 100343243 its reverse (342343001), we get a palindrome (442686244).

It can be divided in two parts, 100 and 343243, that added together give a palindrome (343343).

The spelling of 100343243 in words is "one hundred million, three hundred forty-three thousand, two hundred forty-three".