101000043 has 12 divisors (see below), whose sum is σ = 154470888. Its totient is φ = 63372480.

The previous prime is 101000027. The next prime is 101000051. The reversal of 101000043 is 340000101.

It is not a de Polignac number, because 101000043 - 2⁴ = 101000027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100999989 and 101000034.

It is not an unprimeable number, because it can be changed into a prime (101000023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329913 + ... + 330218.

It is an arithmetic number, because the mean of its divisors is an integer number (12872574).

Almost surely, 2^101000043 is an apocalyptic number.

101000043 is a deficient number, since it is larger than the sum of its proper divisors (53470845).

101000043 is a wasteful number, since it uses less digits than its factorization.

101000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660154 (or 660151 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 101000043 is about 10049.8777604506. The cubic root of 101000043 is about 465.7010168699.

Adding to 101000043 its reverse (340000101), we get a palindrome (441000144).

The spelling of 101000043 in words is "one hundred one million, forty-three", and thus it is an aban number.