1000260504251 has 2 divisors, whose sum is σ = 1000260504252. Its totient is φ = 1000260504250.

The previous prime is 1000260504239. The next prime is 1000260504277. The reversal of 1000260504251 is 1524050620001.

It is an a-pointer prime, because the next prime (1000260504277) can be obtained adding 1000260504251 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000260504251 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000260504251.

It is not a weakly prime, because it can be changed into another prime (1000250504251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500130252125 + 500130252126.

It is an arithmetic number, because the mean of its divisors is an integer number (500130252126).

Almost surely, 2^{1000260504251} is an apocalyptic number.

1000260504251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000260504251 is an equidigital number, since it uses as much as digits as its factorization.

1000260504251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 1000260504251 in words is "one trillion, two hundred sixty million, five hundred four thousand, two hundred fifty-one".