2101010389 has 2 divisors, whose sum is σ = 2101010390. Its totient is φ = 2101010388.

The previous prime is 2101010339. The next prime is 2101010411. The reversal of 2101010389 is 9830101012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1715202225 + 385808164 = 41415^2 + 19642^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101010389 - 2¹⁵ = 2100977621 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101010339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050505194 + 1050505195.

It is an arithmetic number, because the mean of its divisors is an integer number (1050505195).

Almost surely, 2^2101010389 is an apocalyptic number.

It is an amenable number.

2101010389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101010389 is an equidigital number, since it uses as much as digits as its factorization.

2101010389 is an evil number, because the sum of its binary digits is even.

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

The square root of 2101010389 is about 45836.7798716271. The cubic root of 2101010389 is about 1280.7845103280.

The spelling of 2101010389 in words is "two billion, one hundred one million, ten thousand, three hundred eighty-nine".