2120377289 has 2 divisors, whose sum is σ = 2120377290. Its totient is φ = 2120377288.

The previous prime is 2120377267. The next prime is 2120377321. The reversal of 2120377289 is 9827730212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2013047689 + 107329600 = 44867^2 + 10360^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120377289 - 2²⁴ = 2103600073 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120377229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060188644 + 1060188645.

It is an arithmetic number, because the mean of its divisors is an integer number (1060188645).

Almost surely, 2^2120377289 is an apocalyptic number.

It is an amenable number.

2120377289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120377289 is an equidigital number, since it uses as much as digits as its factorization.

2120377289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 2120377289 is about 46047.5546473426. The cubic root of 2120377289 is about 1284.7078603295.

The spelling of 2120377289 in words is "two billion, one hundred twenty million, three hundred seventy-seven thousand, two hundred eighty-nine".