1103449011523 has 2 divisors, whose sum is σ = 1103449011524. Its totient is φ = 1103449011522.

The previous prime is 1103449011487. The next prime is 1103449011527. The reversal of 1103449011523 is 3251109443011.

It is a strong prime.

It is an emirp because it is prime and its reverse (3251109443011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1103449011523 - 2¹⁷ = 1103448880451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103449011527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551724505761 + 551724505762.

It is an arithmetic number, because the mean of its divisors is an integer number (551724505762).

Almost surely, 2^{1103449011523} is an apocalyptic number.

1103449011523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103449011523 is an equidigital number, since it uses as much as digits as its factorization.

1103449011523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 1103449011523 in words is "one trillion, one hundred three billion, four hundred forty-nine million, eleven thousand, five hundred twenty-three".