1002101389 has 2 divisors, whose sum is σ = 1002101390. Its totient is φ = 1002101388.

The previous prime is 1002101341. The next prime is 1002101407. The reversal of 1002101389 is 9831012001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 939422500 + 62678889 = 30650^2 + 7917^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002101389 - 2⁹ = 1002100877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002105389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501050694 + 501050695.

It is an arithmetic number, because the mean of its divisors is an integer number (501050695).

Almost surely, 2^1002101389 is an apocalyptic number.

It is an amenable number.

1002101389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002101389 is an equidigital number, since it uses as much as digits as its factorization.

1002101389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1002101389 is about 31655.9850423265. The cubic root of 1002101389 is about 1000.6999729236.

The spelling of 1002101389 in words is "one billion, two million, one hundred one thousand, three hundred eighty-nine".