1001111969453 has 2 divisors, whose sum is σ = 1001111969454. Its totient is φ = 1001111969452.

The previous prime is 1001111969449. The next prime is 1001111969467. The reversal of 1001111969453 is 3549691111001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 870933164644 + 130178804809 = 933238^2 + 360803^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001111969453 - 2² = 1001111969449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001111969453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001111939453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500555984726 + 500555984727.

It is an arithmetic number, because the mean of its divisors is an integer number (500555984727).

Almost surely, 2^{1001111969453} is an apocalyptic number.

It is an amenable number.

1001111969453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001111969453 is an equidigital number, since it uses as much as digits as its factorization.

1001111969453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 41.

The spelling of 1001111969453 in words is "one trillion, one billion, one hundred eleven million, nine hundred sixty-nine thousand, four hundred fifty-three".