1378043351 has 2 divisors, whose sum is σ = 1378043352. Its totient is φ = 1378043350.

The previous prime is 1378043327. The next prime is 1378043369. The reversal of 1378043351 is 1533408731.

It is a strong prime.

It is an emirp because it is prime and its reverse (1533408731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1378043351 - 2¹⁰ = 1378042327 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 (1378043311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689021675 + 689021676.

It is an arithmetic number, because the mean of its divisors is an integer number (689021676).

Almost surely, 2^1378043351 is an apocalyptic number.

1378043351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378043351 is an equidigital number, since it uses as much as digits as its factorization.

1378043351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1378043351 is about 37122.0062900700. The cubic root of 1378043351 is about 1112.8098470538.

The spelling of 1378043351 in words is "one billion, three hundred seventy-eight million, forty-three thousand, three hundred fifty-one".