1340780303 has 2 divisors, whose sum is σ = 1340780304. Its totient is φ = 1340780302.

The previous prime is 1340780281. The next prime is 1340780323. The reversal of 1340780303 is 3030870431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340780303 - 2⁸ = 1340780047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340780323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670390151 + 670390152.

It is an arithmetic number, because the mean of its divisors is an integer number (670390152).

Almost surely, 2^1340780303 is an apocalyptic number.

1340780303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340780303 is an equidigital number, since it uses as much as digits as its factorization.

1340780303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1340780303 is about 36616.6670110757. The cubic root of 1340780303 is about 1102.6877258437.

The spelling of 1340780303 in words is "one billion, three hundred forty million, seven hundred eighty thousand, three hundred three".