101043 has 12 divisors (see below), whose sum is σ = 148720. Its totient is φ = 66096.

The previous prime is 101027. The next prime is 101051. The reversal of 101043 is 340101.

It is not a de Polignac number, because 101043 - 2⁴ = 101027 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101063) 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, 873 + ... + 981.

2¹⁰¹⁰⁴³ is an apocalyptic number.

101043 is a deficient number, since it is larger than the sum of its proper divisors (47677).

101043 is a wasteful number, since it uses less digits than its factorization.

101043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 215 counting only the distinct ones).

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

The square root of 101043 is about 317.8726159958. The cubic root of 101043 is about 46.5767030977.

Adding to 101043 its reverse (340101), we get a palindrome (441144).

The spelling of 101043 in words is "one hundred one thousand, forty-three", and thus it is an iban number.