211330303331 has 32 divisors (see below), whose sum is σ = 257138703360. Its totient is φ = 169838089344.

The previous prime is 211330303313. The next prime is 211330303381. The reversal of 211330303331 is 133303033112.

It is not a de Polignac number, because 211330303331 - 2¹⁸ = 211330041187 is a prime.

It is a super-2 number, since 2×211330303331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211330303297 and 211330303306.

It is not an unprimeable number, because it can be changed into a prime (211330303381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1440146 + ... + 1580088.

It is an arithmetic number, because the mean of its divisors is an integer number (8035584480).

Almost surely, 2^211330303331 is an apocalyptic number.

211330303331 is a deficient number, since it is larger than the sum of its proper divisors (45808400029).

211330303331 is a wasteful number, since it uses less digits than its factorization.

211330303331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140195.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 211330303331 its reverse (133303033112), we get a palindrome (344633336443).

The spelling of 211330303331 in words is "two hundred eleven billion, three hundred thirty million, three hundred three thousand, three hundred thirty-one".