43312103 has 2 divisors, whose sum is σ = 43312104. Its totient is φ = 43312102.

The previous prime is 43312099. The next prime is 43312111. The reversal of 43312103 is 30121334.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43312103 - 2² = 43312099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43312123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21656051 + 21656052.

It is an arithmetic number, because the mean of its divisors is an integer number (21656052).

Almost surely, 2^43312103 is an apocalyptic number.

43312103 is a deficient number, since it is larger than the sum of its proper divisors (1).

43312103 is an equidigital number, since it uses as much as digits as its factorization.

43312103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 43312103 is about 6581.1931289091. The cubic root of 43312103 is about 351.1853767631.

Adding to 43312103 its reverse (30121334), we get a palindrome (73433437).

The spelling of 43312103 in words is "forty-three million, three hundred twelve thousand, one hundred three".