11520432452437 has 2 divisors, whose sum is σ = 11520432452438. Its totient is φ = 11520432452436.

The previous prime is 11520432452363. The next prime is 11520432452449. The reversal of 11520432452437 is 73425423402511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9394709276241 + 2125723176196 = 3065079^2 + 1457986^2 .

It is a cyclic number.

It is not a de Polignac number, because 11520432452437 - 2¹¹ = 11520432450389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11520432452393 and 11520432452402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11520432452537) 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, 5760216226218 + 5760216226219.

It is an arithmetic number, because the mean of its divisors is an integer number (5760216226219).

Almost surely, 2^{11520432452437} is an apocalyptic number.

It is an amenable number.

11520432452437 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520432452437 is an equidigital number, since it uses as much as digits as its factorization.

11520432452437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 43.

Adding to 11520432452437 its reverse (73425423402511), we get a palindrome (84945855854948).

The spelling of 11520432452437 in words is "eleven trillion, five hundred twenty billion, four hundred thirty-two million, four hundred fifty-two thousand, four hundred thirty-seven".