11131797827 has 2 divisors, whose sum is σ = 11131797828. Its totient is φ = 11131797826.

The previous prime is 11131797811. The next prime is 11131797841. The reversal of 11131797827 is 72879713111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11131797827 - 2⁴ = 11131797811 is a prime.

It is a super-2 number, since 2×11131797827² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11131797857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565898913 + 5565898914.

It is an arithmetic number, because the mean of its divisors is an integer number (5565898914).

Almost surely, 2^11131797827 is an apocalyptic number.

11131797827 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131797827 is an equidigital number, since it uses as much as digits as its factorization.

11131797827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 47.

The spelling of 11131797827 in words is "eleven billion, one hundred thirty-one million, seven hundred ninety-seven thousand, eight hundred twenty-seven".