211431301201 has 2 divisors, whose sum is σ = 211431301202. Its totient is φ = 211431301200.

The previous prime is 211431301117. The next prime is 211431301223. The reversal of 211431301201 is 102103134112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206965854225 + 4465446976 = 454935^2 + 66824^2 .

It is a cyclic number.

It is not a de Polignac number, because 211431301201 - 2¹¹ = 211431299153 is a prime.

It is not a weakly prime, because it can be changed into another prime (211431301231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105715650600 + 105715650601.

It is an arithmetic number, because the mean of its divisors is an integer number (105715650601).

Almost surely, 2^211431301201 is an apocalyptic number.

It is an amenable number.

211431301201 is a deficient number, since it is larger than the sum of its proper divisors (1).

211431301201 is an equidigital number, since it uses as much as digits as its factorization.

211431301201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211431301201 its reverse (102103134112), we get a palindrome (313534435313).

The spelling of 211431301201 in words is "two hundred eleven billion, four hundred thirty-one million, three hundred one thousand, two hundred one".