103121043 has 4 divisors (see below), whose sum is σ = 137494728. Its totient is φ = 68747360.

The previous prime is 103121033. The next prime is 103121047. The reversal of 103121043 is 340121301.

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 103121043 - 2⁹ = 103120531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103121047) 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, 17186838 + ... + 17186843.

It is an arithmetic number, because the mean of its divisors is an integer number (34373682).

Almost surely, 2^103121043 is an apocalyptic number.

103121043 is a deficient number, since it is larger than the sum of its proper divisors (34373685).

103121043 is an equidigital number, since it uses as much as digits as its factorization.

103121043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34373684.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 103121043 is about 10154.8531747140. The cubic root of 103121043 is about 468.9383658245.

Adding to 103121043 its reverse (340121301), we get a palindrome (443242344).

The spelling of 103121043 in words is "one hundred three million, one hundred twenty-one thousand, forty-three".