11210687491 has 2 divisors, whose sum is σ = 11210687492. Its totient is φ = 11210687490.

The previous prime is 11210687483. The next prime is 11210687539. The reversal of 11210687491 is 19478601211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11210687491 - 2³ = 11210687483 is a prime.

It is a super-4 number, since 4×11210687491⁴ (a number of 41 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (11210667491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605343745 + 5605343746.

It is an arithmetic number, because the mean of its divisors is an integer number (5605343746).

Almost surely, 2^11210687491 is an apocalyptic number.

11210687491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210687491 is an equidigital number, since it uses as much as digits as its factorization.

11210687491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 40.

The spelling of 11210687491 in words is "eleven billion, two hundred ten million, six hundred eighty-seven thousand, four hundred ninety-one".