11131021453 has 2 divisors, whose sum is σ = 11131021454. Its totient is φ = 11131021452.

The previous prime is 11131021423. The next prime is 11131021463. The reversal of 11131021453 is 35412013111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10999185129 + 131836324 = 104877^2 + 11482^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131021453 - 2⁹ = 11131020941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11131021403) 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, 5565510726 + 5565510727.

It is an arithmetic number, because the mean of its divisors is an integer number (5565510727).

Almost surely, 2^11131021453 is an apocalyptic number.

It is an amenable number.

11131021453 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131021453 is an equidigital number, since it uses as much as digits as its factorization.

11131021453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 11131021453 its reverse (35412013111), we get a palindrome (46543034564).

The spelling of 11131021453 in words is "eleven billion, one hundred thirty-one million, twenty-one thousand, four hundred fifty-three".