11403111449 has 2 divisors, whose sum is σ = 11403111450. Its totient is φ = 11403111448.

The previous prime is 11403111427. The next prime is 11403111451. The reversal of 11403111449 is 94411130411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11399405824 + 3705625 = 106768^2 + 1925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11403111449 is a prime.

Together with 11403111451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11403111469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701555724 + 5701555725.

It is an arithmetic number, because the mean of its divisors is an integer number (5701555725).

Almost surely, 2^11403111449 is an apocalyptic number.

It is an amenable number.

11403111449 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403111449 is an equidigital number, since it uses as much as digits as its factorization.

11403111449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 11403111449 in words is "eleven billion, four hundred three million, one hundred eleven thousand, four hundred forty-nine".