2112320489 has 2 divisors, whose sum is σ = 2112320490. Its totient is φ = 2112320488.

The previous prime is 2112320477. The next prime is 2112320527. The reversal of 2112320489 is 9840232112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1675510489 + 436810000 = 40933^2 + 20900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112320489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112329489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056160244 + 1056160245.

It is an arithmetic number, because the mean of its divisors is an integer number (1056160245).

Almost surely, 2^2112320489 is an apocalyptic number.

It is an amenable number.

2112320489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112320489 is an equidigital number, since it uses as much as digits as its factorization.

2112320489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 2112320489 is about 45959.9879134014. The cubic root of 2112320489 is about 1283.0786264097.

The spelling of 2112320489 in words is "two billion, one hundred twelve million, three hundred twenty thousand, four hundred eighty-nine".