11531054453 has 2 divisors, whose sum is σ = 11531054454. Its totient is φ = 11531054452.

The previous prime is 11531054441. The next prime is 11531054467. The reversal of 11531054453 is 35445013511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7644529489 + 3886524964 = 87433^2 + 62342^2 .

It is a cyclic number.

It is not a de Polignac number, because 11531054453 - 2²⁴ = 11514277237 is a prime.

It is a super-2 number, since 2×11531054453² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11531054473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765527226 + 5765527227.

It is an arithmetic number, because the mean of its divisors is an integer number (5765527227).

Almost surely, 2^11531054453 is an apocalyptic number.

It is an amenable number.

11531054453 is a deficient number, since it is larger than the sum of its proper divisors (1).

11531054453 is an equidigital number, since it uses as much as digits as its factorization.

11531054453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 11531054453 its reverse (35445013511), we get a palindrome (46976067964).

The spelling of 11531054453 in words is "eleven billion, five hundred thirty-one million, fifty-four thousand, four hundred fifty-three".