4021107109 has 2 divisors, whose sum is σ = 4021107110. Its totient is φ = 4021107108.

The previous prime is 4021107091. The next prime is 4021107113. The reversal of 4021107109 is 9017011204.

Together with previous prime (4021107091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2573532900 + 1447574209 = 50730^2 + 38047^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021107109 - 2¹¹ = 4021105061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021107149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010553554 + 2010553555.

It is an arithmetic number, because the mean of its divisors is an integer number (2010553555).

Almost surely, 2^4021107109 is an apocalyptic number.

It is an amenable number.

4021107109 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021107109 is an equidigital number, since it uses as much as digits as its factorization.

4021107109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 4021107109 is about 63412.2000012616. The cubic root of 4021107109 is about 1590.1882757680.

The spelling of 4021107109 in words is "four billion, twenty-one million, one hundred seven thousand, one hundred nine".