23100043 has 4 divisors (see below), whose sum is σ = 23312080. Its totient is φ = 22888008.

The previous prime is 23100041. The next prime is 23100061. The reversal of 23100043 is 34000132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23100043 - 2¹ = 23100041 is a prime.

It is a super-2 number, since 2×23100043² = 1067223973203698, 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 = 23099996 and 23100032.

It is not an unprimeable number, because it can be changed into a prime (23100041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105855 + ... + 106072.

It is an arithmetic number, because the mean of its divisors is an integer number (5828020).

Almost surely, 2^23100043 is an apocalyptic number.

23100043 is a deficient number, since it is larger than the sum of its proper divisors (212037).

23100043 is a wasteful number, since it uses less digits than its factorization.

23100043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212036.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23100043 is about 4806.2504096229. The cubic root of 23100043 is about 284.7984334475.

Adding to 23100043 its reverse (34000132), we get a palindrome (57100175).

The spelling of 23100043 in words is "twenty-three million, one hundred thousand, forty-three".