42003262309 has 2 divisors, whose sum is σ = 42003262310. Its totient is φ = 42003262308.

The previous prime is 42003262291. The next prime is 42003262319. The reversal of 42003262309 is 90326230024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41240674084 + 762588225 = 203078^2 + 27615^2 .

It is a cyclic number.

It is not a de Polignac number, because 42003262309 - 2¹⁹ = 42002738021 is a prime.

It is a super-2 number, since 2×42003262309² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42003262319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21001631154 + 21001631155.

It is an arithmetic number, because the mean of its divisors is an integer number (21001631155).

Almost surely, 2^42003262309 is an apocalyptic number.

It is an amenable number.

42003262309 is a deficient number, since it is larger than the sum of its proper divisors (1).

42003262309 is an equidigital number, since it uses as much as digits as its factorization.

42003262309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 42003262309 in words is "forty-two billion, three million, two hundred sixty-two thousand, three hundred nine".