1252421804503 has 2 divisors, whose sum is σ = 1252421804504. Its totient is φ = 1252421804502.

The previous prime is 1252421804489. The next prime is 1252421804519. The reversal of 1252421804503 is 3054081242521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1252421804503 - 2⁵ = 1252421804471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252421804303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626210902251 + 626210902252.

It is an arithmetic number, because the mean of its divisors is an integer number (626210902252).

Almost surely, 2^{1252421804503} is an apocalyptic number.

1252421804503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252421804503 is an equidigital number, since it uses as much as digits as its factorization.

1252421804503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 1252421804503 in words is "one trillion, two hundred fifty-two billion, four hundred twenty-one million, eight hundred four thousand, five hundred three".