211133000331989 has 2 divisors, whose sum is σ = 211133000331990. Its totient is φ = 211133000331988.

The previous prime is 211133000331949. The next prime is 211133000332039. The reversal of 211133000331989 is 989133000331112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150391396515889 + 60741603816100 = 12263417^2 + 7793690^2 .

It is a cyclic number.

It is not a de Polignac number, because 211133000331989 - 2²⁰ = 211132999283413 is a prime.

It is a super-2 number, since 2×211133000331989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211133000331949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105566500165994 + 105566500165995.

It is an arithmetic number, because the mean of its divisors is an integer number (105566500165995).

Almost surely, 2^{211133000331989} is an apocalyptic number.

It is an amenable number.

211133000331989 is a deficient number, since it is larger than the sum of its proper divisors (1).

211133000331989 is an equidigital number, since it uses as much as digits as its factorization.

211133000331989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 211133000331989 in words is "two hundred eleven trillion, one hundred thirty-three billion, three hundred thirty-one thousand, nine hundred eighty-nine".