265128703043 has 2 divisors, whose sum is σ = 265128703044. Its totient is φ = 265128703042.

The previous prime is 265128703039. The next prime is 265128703067. The reversal of 265128703043 is 340307821562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265128703043 - 2² = 265128703039 is a prime.

It is not a weakly prime, because it can be changed into another prime (265128703033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132564351521 + 132564351522.

It is an arithmetic number, because the mean of its divisors is an integer number (132564351522).

Almost surely, 2^265128703043 is an apocalyptic number.

265128703043 is a deficient number, since it is larger than the sum of its proper divisors (1).

265128703043 is an equidigital number, since it uses as much as digits as its factorization.

265128703043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 265128703043 in words is "two hundred sixty-five billion, one hundred twenty-eight million, seven hundred three thousand, forty-three".