11272120761487 has 2 divisors, whose sum is σ = 11272120761488. Its totient is φ = 11272120761486.

The previous prime is 11272120761449. The next prime is 11272120761491. The reversal of 11272120761487 is 78416702127211.

11272120761487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11272120761487 - 2¹⁹ = 11272120237199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11272120761487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11272120761887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5636060380743 + 5636060380744.

It is an arithmetic number, because the mean of its divisors is an integer number (5636060380744).

Almost surely, 2^{11272120761487} is an apocalyptic number.

11272120761487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11272120761487 is an equidigital number, since it uses as much as digits as its factorization.

11272120761487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 49.

Adding to 11272120761487 its reverse (78416702127211), we get a palindrome (89688822888698).

The spelling of 11272120761487 in words is "eleven trillion, two hundred seventy-two billion, one hundred twenty million, seven hundred sixty-one thousand, four hundred eighty-seven".