1002123013289 has 2 divisors, whose sum is σ = 1002123013290. Its totient is φ = 1002123013288.

The previous prime is 1002123013273. The next prime is 1002123013349. The reversal of 1002123013289 is 9823103212001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 992932531600 + 9190481689 = 996460^2 + 95867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002123013289 - 2⁴ = 1002123013273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002123013219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501061506644 + 501061506645.

It is an arithmetic number, because the mean of its divisors is an integer number (501061506645).

Almost surely, 2^{1002123013289} is an apocalyptic number.

It is an amenable number.

1002123013289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002123013289 is an equidigital number, since it uses as much as digits as its factorization.

1002123013289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 1002123013289 in words is "one trillion, two billion, one hundred twenty-three million, thirteen thousand, two hundred eighty-nine".