1251350012503 has 2 divisors, whose sum is σ = 1251350012504. Its totient is φ = 1251350012502.

The previous prime is 1251350012501. The next prime is 1251350012659. The reversal of 1251350012503 is 3052100531521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1251350012503 - 2¹ = 1251350012501 is a prime.

Together with 1251350012501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1251350012501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625675006251 + 625675006252.

It is an arithmetic number, because the mean of its divisors is an integer number (625675006252).

Almost surely, 2^{1251350012503} is an apocalyptic number.

1251350012503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251350012503 is an equidigital number, since it uses as much as digits as its factorization.

1251350012503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 1251350012503 in words is "one trillion, two hundred fifty-one billion, three hundred fifty million, twelve thousand, five hundred three".