211310013331 has 16 divisors (see below), whose sum is σ = 222913715200. Its totient is φ = 199754887968.

The previous prime is 211310013289. The next prime is 211310013349. The reversal of 211310013331 is 133310013112.

It is a cyclic number.

It is not a de Polignac number, because 211310013331 - 2⁷ = 211310013203 is a prime.

It is a super-2 number, since 2×211310013331² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 211310013299 and 211310013308.

It is not an unprimeable number, because it can be changed into a prime (211310013361) 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, 30939625 + ... + 30946453.

It is an arithmetic number, because the mean of its divisors is an integer number (13932107200).

Almost surely, 2^211310013331 is an apocalyptic number.

211310013331 is a deficient number, since it is larger than the sum of its proper divisors (11603701869).

211310013331 is a wasteful number, since it uses less digits than its factorization.

211310013331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10138.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 211310013331 its reverse (133310013112), we get a palindrome (344620026443).

The spelling of 211310013331 in words is "two hundred eleven billion, three hundred ten million, thirteen thousand, three hundred thirty-one".