211311010020231 has 64 divisors (see below), whose sum is σ = 352542379622400. Its totient is φ = 123931472191200.

The previous prime is 211311010020221. The next prime is 211311010020317. The reversal of 211311010020231 is 132020010113112.

211311010020231 is a `hidden beast` number, since 2 + 1 + 1 + 311 + 0 + 100 + 20 + 231 = 666.

It is not a de Polignac number, because 211311010020231 - 2³³ = 211302420085639 is a prime.

It is a super-2 number, since 2×211311010020231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211311010020221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 255790800 + ... + 256615578.

It is an arithmetic number, because the mean of its divisors is an integer number (5508474681600).

Almost surely, 2^{211311010020231} is an apocalyptic number.

211311010020231 is a deficient number, since it is larger than the sum of its proper divisors (141231369602169).

211311010020231 is a wasteful number, since it uses less digits than its factorization.

211311010020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852657 (or 852651 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211311010020231 its reverse (132020010113112), we get a palindrome (343331020133343).

The spelling of 211311010020231 in words is "two hundred eleven trillion, three hundred eleven billion, ten million, twenty thousand, two hundred thirty-one".