11452542481 has 2 divisors, whose sum is σ = 11452542482. Its totient is φ = 11452542480.

The previous prime is 11452542457. The next prime is 11452542487. The reversal of 11452542481 is 18424525411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11303091856 + 149450625 = 106316^2 + 12225^2 .

It is a cyclic number.

It is not a de Polignac number, because 11452542481 - 2²¹ = 11450445329 is a prime.

It is a super-2 number, since 2×11452542481² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11452542481.

It is not a weakly prime, because it can be changed into another prime (11452542487) 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, 5726271240 + 5726271241.

It is an arithmetic number, because the mean of its divisors is an integer number (5726271241).

Almost surely, 2^11452542481 is an apocalyptic number.

It is an amenable number.

11452542481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11452542481 is an equidigital number, since it uses as much as digits as its factorization.

11452542481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51200, while the sum is 37.

The spelling of 11452542481 in words is "eleven billion, four hundred fifty-two million, five hundred forty-two thousand, four hundred eighty-one".