1003454344553 has 2 divisors, whose sum is σ = 1003454344554. Its totient is φ = 1003454344552.

The previous prime is 1003454344537. The next prime is 1003454344657. The reversal of 1003454344553 is 3554434543001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971460583129 + 31993761424 = 985627^2 + 178868^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003454344553 - 2⁴ = 1003454344537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1003454344553.

It is not a weakly prime, because it can be changed into another prime (1003454344523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501727172276 + 501727172277.

It is an arithmetic number, because the mean of its divisors is an integer number (501727172277).

Almost surely, 2^{1003454344553} is an apocalyptic number.

It is an amenable number.

1003454344553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003454344553 is an equidigital number, since it uses as much as digits as its factorization.

1003454344553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 1003454344553 its reverse (3554434543001), we get a palindrome (4557888887554).

The spelling of 1003454344553 in words is "one trillion, three billion, four hundred fifty-four million, three hundred forty-four thousand, five hundred fifty-three".