1011523453 has 2 divisors, whose sum is σ = 1011523454. Its totient is φ = 1011523452.

The previous prime is 1011523421. The next prime is 1011523507. The reversal of 1011523453 is 3543251101.

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., 657255769 + 354267684 = 25637^2 + 18822^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011523453 - 2⁵ = 1011523421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011523853) 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, 505761726 + 505761727.

It is an arithmetic number, because the mean of its divisors is an integer number (505761727).

Almost surely, 2^1011523453 is an apocalyptic number.

It is an amenable number.

1011523453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011523453 is an equidigital number, since it uses as much as digits as its factorization.

1011523453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1011523453 is about 31804.4564959064. The cubic root of 1011523453 is about 1003.8264902962.

Adding to 1011523453 its reverse (3543251101), we get a palindrome (4554774554).

The spelling of 1011523453 in words is "one billion, eleven million, five hundred twenty-three thousand, four hundred fifty-three".