211130993 has 2 divisors, whose sum is σ = 211130994. Its totient is φ = 211130992.

The previous prime is 211130971. The next prime is 211131013. The reversal of 211130993 is 399031112.

211130993 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 can be written as a sum of positive squares in only one way, i.e., 192321424 + 18809569 = 13868^2 + 4337^2 .

It is a cyclic number.

It is not a de Polignac number, because 211130993 - 2⁸ = 211130737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211130923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105565496 + 105565497.

It is an arithmetic number, because the mean of its divisors is an integer number (105565497).

Almost surely, 2^211130993 is an apocalyptic number.

It is an amenable number.

211130993 is a deficient number, since it is larger than the sum of its proper divisors (1).

211130993 is an equidigital number, since it uses as much as digits as its factorization.

211130993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 211130993 is about 14530.3473117472. The cubic root of 211130993 is about 595.4573542647.

The spelling of 211130993 in words is "two hundred eleven million, one hundred thirty thousand, nine hundred ninety-three".