1252103439413 has 2 divisors, whose sum is σ = 1252103439414. Its totient is φ = 1252103439412.

The previous prime is 1252103439397. The next prime is 1252103439427. The reversal of 1252103439413 is 3149343012521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 993446771524 + 258656667889 = 996718^2 + 508583^2 .

It is an emirp because it is prime and its reverse (3149343012521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252103439413 - 2⁴ = 1252103439397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252103439113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626051719706 + 626051719707.

It is an arithmetic number, because the mean of its divisors is an integer number (626051719707).

Almost surely, 2^{1252103439413} is an apocalyptic number.

It is an amenable number.

1252103439413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252103439413 is an equidigital number, since it uses as much as digits as its factorization.

1252103439413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 1252103439413 in words is "one trillion, two hundred fifty-two billion, one hundred three million, four hundred thirty-nine thousand, four hundred thirteen".