211421013302311 has 16 divisors (see below), whose sum is σ = 217846874843136. Its totient is φ = 205032641574816.

The previous prime is 211421013302299. The next prime is 211421013302351. The reversal of 211421013302311 is 113203310124112.

It is a cyclic number.

It is not a de Polignac number, because 211421013302311 - 2⁴¹ = 209221990046759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211421013302351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645106890 + ... + 645434536.

It is an arithmetic number, because the mean of its divisors is an integer number (13615429677696).

Almost surely, 2^{211421013302311} is an apocalyptic number.

211421013302311 is a deficient number, since it is larger than the sum of its proper divisors (6425861540825).

211421013302311 is a wasteful number, since it uses less digits than its factorization.

211421013302311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384798.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 211421013302311 its reverse (113203310124112), we get a palindrome (324624323426423).

The spelling of 211421013302311 in words is "two hundred eleven trillion, four hundred twenty-one billion, thirteen million, three hundred two thousand, three hundred eleven".