211232133109 has 2 divisors, whose sum is σ = 211232133110. Its totient is φ = 211232133108.

The previous prime is 211232133089. The next prime is 211232133139. The reversal of 211232133109 is 901331232112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202952953009 + 8279180100 = 450503^2 + 90990^2 .

It is a cyclic number.

It is not a de Polignac number, because 211232133109 - 2³⁷ = 73793179637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211232133139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105616066554 + 105616066555.

It is an arithmetic number, because the mean of its divisors is an integer number (105616066555).

Almost surely, 2^211232133109 is an apocalyptic number.

It is an amenable number.

211232133109 is a deficient number, since it is larger than the sum of its proper divisors (1).

211232133109 is an equidigital number, since it uses as much as digits as its factorization.

211232133109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 211232133109 in words is "two hundred eleven billion, two hundred thirty-two million, one hundred thirty-three thousand, one hundred nine".