1103434421 has 2 divisors, whose sum is σ = 1103434422. Its totient is φ = 1103434420.

The previous prime is 1103434399. The next prime is 1103434433. The reversal of 1103434421 is 1244343011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1055340196 + 48094225 = 32486^2 + 6935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103434421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103434721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551717210 + 551717211.

It is an arithmetic number, because the mean of its divisors is an integer number (551717211).

Almost surely, 2^1103434421 is an apocalyptic number.

It is an amenable number.

1103434421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103434421 is an equidigital number, since it uses as much as digits as its factorization.

1103434421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1103434421 is about 33217.9833975514. The cubic root of 1103434421 is about 1033.3533279401.

Adding to 1103434421 its reverse (1244343011), we get a palindrome (2347777432).

The spelling of 1103434421 in words is "one billion, one hundred three million, four hundred thirty-four thousand, four hundred twenty-one".