4102012309 has 2 divisors, whose sum is σ = 4102012310. Its totient is φ = 4102012308.

The previous prime is 4102012261. The next prime is 4102012337. The reversal of 4102012309 is 9032102014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2925728100 + 1176284209 = 54090^2 + 34297^2 .

It is a cyclic number.

It is not a de Polignac number, because 4102012309 - 2¹³ = 4102004117 is a prime.

It is a super-2 number, since 2×4102012309² = 33653009966375022962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4102012309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4102012709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2051006154 + 2051006155.

It is an arithmetic number, because the mean of its divisors is an integer number (2051006155).

Almost surely, 2^4102012309 is an apocalyptic number.

It is an amenable number.

4102012309 is a deficient number, since it is larger than the sum of its proper divisors (1).

4102012309 is an equidigital number, since it uses as much as digits as its factorization.

4102012309 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 22.

The square root of 4102012309 is about 64046.9539400587. The cubic root of 4102012309 is about 1600.7824700099.

The spelling of 4102012309 in words is "four billion, one hundred two million, twelve thousand, three hundred nine".