11156854541237 has 2 divisors, whose sum is σ = 11156854541238. Its totient is φ = 11156854541236.

The previous prime is 11156854541159. The next prime is 11156854541297. The reversal of 11156854541237 is 73214545865111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5994079854961 + 5162774686276 = 2448281^2 + 2272174^2 .

It is a cyclic number.

It is not a de Polignac number, because 11156854541237 - 2¹² = 11156854537141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11156854541297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5578427270618 + 5578427270619.

It is an arithmetic number, because the mean of its divisors is an integer number (5578427270619).

Almost surely, 2^{11156854541237} is an apocalyptic number.

It is an amenable number.

11156854541237 is a deficient number, since it is larger than the sum of its proper divisors (1).

11156854541237 is an equidigital number, since it uses as much as digits as its factorization.

11156854541237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032000, while the sum is 53.

The spelling of 11156854541237 in words is "eleven trillion, one hundred fifty-six billion, eight hundred fifty-four million, five hundred forty-one thousand, two hundred thirty-seven".