211124131 has 2 divisors, whose sum is σ = 211124132. Its totient is φ = 211124130.

The previous prime is 211124119. The next prime is 211124149. The reversal of 211124131 is 131421112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211124131 - 2⁵ = 211124099 is a prime.

It is a super-2 number, since 2×211124131² = 89146797381010322, which contains 22 as substring.

It is equal to p_11660101 and since 211124131 and 11660101 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (211124191) 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, 105562065 + 105562066.

It is an arithmetic number, because the mean of its divisors is an integer number (105562066).

Almost surely, 2^211124131 is an apocalyptic number.

211124131 is a deficient number, since it is larger than the sum of its proper divisors (1).

211124131 is an equidigital number, since it uses as much as digits as its factorization.

211124131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 16.

The square root of 211124131 is about 14530.1111833324. Note that the first 4 decimals coincide. The cubic root of 211124131 is about 595.4509031786.

Adding to 211124131 its reverse (131421112), we get a palindrome (342545243).

The spelling of 211124131 in words is "two hundred eleven million, one hundred twenty-four thousand, one hundred thirty-one".