211400131 has 2 divisors, whose sum is σ = 211400132. Its totient is φ = 211400130.

The previous prime is 211400113. The next prime is 211400149. The reversal of 211400131 is 131004112.

Together with previous prime (211400113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (211400113) and next prime (211400149).

It is a cyclic number.

It is not a de Polignac number, because 211400131 - 2⁷ = 211400003 is a prime.

It is a super-2 number, since 2×211400131² = 89380030773634322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211400531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105700065 + 105700066.

It is an arithmetic number, because the mean of its divisors is an integer number (105700066).

Almost surely, 2^211400131 is an apocalyptic number.

211400131 is a deficient number, since it is larger than the sum of its proper divisors (1).

211400131 is an equidigital number, since it uses as much as digits as its factorization.

211400131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 211400131 is about 14539.6055998779. The cubic root of 211400131 is about 595.7102654241.

Adding to 211400131 its reverse (131004112), we get a palindrome (342404243).

The spelling of 211400131 in words is "two hundred eleven million, four hundred thousand, one hundred thirty-one".