2133112021109 has 2 divisors, whose sum is σ = 2133112021110. Its totient is φ = 2133112021108.

The previous prime is 2133112021099. The next prime is 2133112021141. The reversal of 2133112021109 is 9011202113312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1072098718084 + 1061013303025 = 1035422^2 + 1030055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2133112021109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2133112021009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066556010554 + 1066556010555.

It is an arithmetic number, because the mean of its divisors is an integer number (1066556010555).

Almost surely, 2^{2133112021109} is an apocalyptic number.

It is an amenable number.

2133112021109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133112021109 is an equidigital number, since it uses as much as digits as its factorization.

2133112021109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 2133112021109 in words is "two trillion, one hundred thirty-three billion, one hundred twelve million, twenty-one thousand, one hundred nine".