211316405031055 has 16 divisors (see below), whose sum is σ = 259153479281664. Its totient is φ = 165342219661600.

The previous prime is 211316405031049. The next prime is 211316405031271. The reversal of 211316405031055 is 550130504613112.

It is not a de Polignac number, because 211316405031055 - 2³ = 211316405031047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309520747 + ... + 310202716.

It is an arithmetic number, because the mean of its divisors is an integer number (16197092455104).

Almost surely, 2^{211316405031055} is an apocalyptic number.

211316405031055 is a deficient number, since it is larger than the sum of its proper divisors (47837074250609).

211316405031055 is a wasteful number, since it uses less digits than its factorization.

211316405031055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619724966.

The product of its (nonzero) digits is 54000, while the sum is 37.

Adding to 211316405031055 its reverse (550130504613112), we get a palindrome (761446909644167).

The spelling of 211316405031055 in words is "two hundred eleven trillion, three hundred sixteen billion, four hundred five million, thirty-one thousand, fifty-five".