211060631 has 2 divisors, whose sum is σ = 211060632. Its totient is φ = 211060630.

The previous prime is 211060613. The next prime is 211060639. The reversal of 211060631 is 136060112.

211060631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (211060613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211060631 - 2⁶ = 211060567 is a prime.

It is a super-2 number, since 2×211060631² = 89093179916236322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211060639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105530315 + 105530316.

It is an arithmetic number, because the mean of its divisors is an integer number (105530316).

Almost surely, 2^211060631 is an apocalyptic number.

211060631 is a deficient number, since it is larger than the sum of its proper divisors (1).

211060631 is an equidigital number, since it uses as much as digits as its factorization.

211060631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 211060631 is about 14527.9259015181. The cubic root of 211060631 is about 595.3911990863.

The spelling of 211060631 in words is "two hundred eleven million, sixty thousand, six hundred thirty-one".