11365723871 has 2 divisors, whose sum is σ = 11365723872. Its totient is φ = 11365723870.

The previous prime is 11365723763. The next prime is 11365723883. The reversal of 11365723871 is 17832756311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11365723871 - 2¹⁴ = 11365707487 is a prime.

It is a super-2 number, since 2×11365723871² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11365725871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5682861935 + 5682861936.

It is an arithmetic number, because the mean of its divisors is an integer number (5682861936).

Almost surely, 2^11365723871 is an apocalyptic number.

11365723871 is a deficient number, since it is larger than the sum of its proper divisors (1).

11365723871 is an equidigital number, since it uses as much as digits as its factorization.

11365723871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 44.

The spelling of 11365723871 in words is "eleven billion, three hundred sixty-five million, seven hundred twenty-three thousand, eight hundred seventy-one".