103720043 has 8 divisors (see below), whose sum is σ = 125510112. Its totient is φ = 83673216.

The previous prime is 103720027. The next prime is 103720049. The reversal of 103720043 is 340027301.

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 103720043 - 2⁴ = 103720027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103719997 and 103720024.

It is not an unprimeable number, because it can be changed into a prime (103720049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435680 + ... + 435917.

It is an arithmetic number, because the mean of its divisors is an integer number (15688764).

Almost surely, 2^103720043 is an apocalyptic number.

103720043 is a deficient number, since it is larger than the sum of its proper divisors (21790069).

103720043 is an equidigital number, since it uses as much as digits as its factorization.

103720043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871621.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 103720043 is about 10184.3037562712. The cubic root of 103720043 is about 469.8445887257.

Adding to 103720043 its reverse (340027301), we get a palindrome (443747344).

The spelling of 103720043 in words is "one hundred three million, seven hundred twenty thousand, forty-three".