1361206103503 has 2 divisors, whose sum is σ = 1361206103504. Its totient is φ = 1361206103502.

The previous prime is 1361206103501. The next prime is 1361206103533. The reversal of 1361206103503 is 3053016021631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1361206103503 - 2¹ = 1361206103501 is a prime.

Together with 1361206103501, 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 (1361206103501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680603051751 + 680603051752.

It is an arithmetic number, because the mean of its divisors is an integer number (680603051752).

Almost surely, 2^{1361206103503} is an apocalyptic number.

1361206103503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361206103503 is an equidigital number, since it uses as much as digits as its factorization.

1361206103503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 1361206103503 in words is "one trillion, three hundred sixty-one billion, two hundred six million, one hundred three thousand, five hundred three".