211203132113 has 2 divisors, whose sum is σ = 211203132114. Its totient is φ = 211203132112.

The previous prime is 211203132109. The next prime is 211203132149. The reversal of 211203132113 is 311231302112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204427866769 + 6775265344 = 452137^2 + 82312^2 .

It is a cyclic number.

It is not a de Polignac number, because 211203132113 - 2² = 211203132109 is a prime.

It is not a weakly prime, because it can be changed into another prime (211203132013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105601566056 + 105601566057.

It is an arithmetic number, because the mean of its divisors is an integer number (105601566057).

Almost surely, 2^211203132113 is an apocalyptic number.

It is an amenable number.

211203132113 is a deficient number, since it is larger than the sum of its proper divisors (1).

211203132113 is an equidigital number, since it uses as much as digits as its factorization.

211203132113 is an odious number, because the sum of its binary digits is odd.

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

Adding to 211203132113 its reverse (311231302112), we get a palindrome (522434434225).

The spelling of 211203132113 in words is "two hundred eleven billion, two hundred three million, one hundred thirty-two thousand, one hundred thirteen".