211012333331 has 2 divisors, whose sum is σ = 211012333332. Its totient is φ = 211012333330.

The previous prime is 211012333313. The next prime is 211012333333. The reversal of 211012333331 is 133333210112.

Together with previous prime (211012333313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211012333331 - 2¹⁴ = 211012316947 is a prime.

It is a super-2 number, since 2×211012333331² (a number of 23 digits) contains 22 as substring.

Together with 211012333333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 211012333297 and 211012333306.

It is not a weakly prime, because it can be changed into another prime (211012333333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506166665 + 105506166666.

It is an arithmetic number, because the mean of its divisors is an integer number (105506166666).

Almost surely, 2^211012333331 is an apocalyptic number.

211012333331 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012333331 is an equidigital number, since it uses as much as digits as its factorization.

211012333331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 211012333331 its reverse (133333210112), we get a palindrome (344345543443).

The spelling of 211012333331 in words is "two hundred eleven billion, twelve million, three hundred thirty-three thousand, three hundred thirty-one".