11378533511 has 2 divisors, whose sum is σ = 11378533512. Its totient is φ = 11378533510.

The previous prime is 11378533459. The next prime is 11378533519. The reversal of 11378533511 is 11533587311.

It is a strong prime.

It is an emirp because it is prime and its reverse (11533587311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11378533511 - 2¹⁴ = 11378517127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11378533519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5689266755 + 5689266756.

It is an arithmetic number, because the mean of its divisors is an integer number (5689266756).

Almost surely, 2^11378533511 is an apocalyptic number.

11378533511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11378533511 is an equidigital number, since it uses as much as digits as its factorization.

11378533511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 38.

The spelling of 11378533511 in words is "eleven billion, three hundred seventy-eight million, five hundred thirty-three thousand, five hundred eleven".