211231053413 has 2 divisors, whose sum is σ = 211231053414. Its totient is φ = 211231053412.

The previous prime is 211231053401. The next prime is 211231053431. The reversal of 211231053413 is 314350132112.

Together with next prime (211231053431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122187299809 + 89043753604 = 349553^2 + 298402^2 .

It is a cyclic number.

It is not a de Polignac number, because 211231053413 - 2⁶ = 211231053349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211231053493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105615526706 + 105615526707.

It is an arithmetic number, because the mean of its divisors is an integer number (105615526707).

Almost surely, 2^211231053413 is an apocalyptic number.

It is an amenable number.

211231053413 is a deficient number, since it is larger than the sum of its proper divisors (1).

211231053413 is an equidigital number, since it uses as much as digits as its factorization.

211231053413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 211231053413 its reverse (314350132112), we get a palindrome (525581185525).

The spelling of 211231053413 in words is "two hundred eleven billion, two hundred thirty-one million, fifty-three thousand, four hundred thirteen".