1321702103 has 2 divisors, whose sum is σ = 1321702104. Its totient is φ = 1321702102.

The previous prime is 1321702097. The next prime is 1321702121. The reversal of 1321702103 is 3012071231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1321702103 - 2²⁰ = 1320653527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321702163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660851051 + 660851052.

It is an arithmetic number, because the mean of its divisors is an integer number (660851052).

Almost surely, 2^1321702103 is an apocalyptic number.

1321702103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321702103 is an equidigital number, since it uses as much as digits as its factorization.

1321702103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1321702103 is about 36355.2211243447. The cubic root of 1321702103 is about 1097.4326082567.

Adding to 1321702103 its reverse (3012071231), we get a palindrome (4333773334).

The spelling of 1321702103 in words is "one billion, three hundred twenty-one million, seven hundred two thousand, one hundred three".