212301311 has 2 divisors, whose sum is σ = 212301312. Its totient is φ = 212301310.

The previous prime is 212301283. The next prime is 212301317. The reversal of 212301311 is 113103212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212301311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212301317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106150655 + 106150656.

It is an arithmetic number, because the mean of its divisors is an integer number (106150656).

Almost surely, 2^212301311 is an apocalyptic number.

212301311 is a deficient number, since it is larger than the sum of its proper divisors (1).

212301311 is an equidigital number, since it uses as much as digits as its factorization.

212301311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 212301311 is about 14570.5631668786. The cubic root of 212301311 is about 596.5555520993. Note that the first 5 decimals are identical.

Adding to 212301311 its reverse (113103212), we get a palindrome (325404523).

The spelling of 212301311 in words is "two hundred twelve million, three hundred one thousand, three hundred eleven".