43113421103 has 2 divisors, whose sum is σ = 43113421104. Its totient is φ = 43113421102.

The previous prime is 43113421073. The next prime is 43113421199. The reversal of 43113421103 is 30112431134.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43113421103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43113424103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21556710551 + 21556710552.

It is an arithmetic number, because the mean of its divisors is an integer number (21556710552).

Almost surely, 2^43113421103 is an apocalyptic number.

43113421103 is a deficient number, since it is larger than the sum of its proper divisors (1).

43113421103 is an equidigital number, since it uses as much as digits as its factorization.

43113421103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 43113421103 its reverse (30112431134), we get a palindrome (73225852237).

The spelling of 43113421103 in words is "forty-three billion, one hundred thirteen million, four hundred twenty-one thousand, one hundred three".