11975243011 has 2 divisors, whose sum is σ = 11975243012. Its totient is φ = 11975243010.

The previous prime is 11975242973. The next prime is 11975243023. The reversal of 11975243011 is 11034257911.

It is a happy number.

11975243011 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 11975243011 - 2⁷ = 11975242883 is a prime.

It is a super-2 number, since 2×11975243011² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11975243711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5987621505 + 5987621506.

It is an arithmetic number, because the mean of its divisors is an integer number (5987621506).

Almost surely, 2^11975243011 is an apocalyptic number.

11975243011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11975243011 is an equidigital number, since it uses as much as digits as its factorization.

11975243011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 11975243011 in words is "eleven billion, nine hundred seventy-five million, two hundred forty-three thousand, eleven".