103443131 has 4 divisors (see below), whose sum is σ = 112847064. Its totient is φ = 94039200.

The previous prime is 103443103. The next prime is 103443169. The reversal of 103443131 is 131344301.

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 103443131 - 2¹⁰ = 103442107 is a prime.

It is a super-2 number, since 2×103443131² = 21400962702166322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103443191) 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, 4701950 + ... + 4701971.

It is an arithmetic number, because the mean of its divisors is an integer number (28211766).

Almost surely, 2^103443131 is an apocalyptic number.

103443131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103443131 is a deficient number, since it is larger than the sum of its proper divisors (9403933).

103443131 is an equidigital number, since it uses as much as digits as its factorization.

103443131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9403932.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 103443131 is about 10170.6996317854. The cubic root of 103443131 is about 469.4260853569.

Adding to 103443131 its reverse (131344301), we get a palindrome (234787432).

The spelling of 103443131 in words is "one hundred three million, four hundred forty-three thousand, one hundred thirty-one".