1310041643 has 2 divisors, whose sum is σ = 1310041644. Its totient is φ = 1310041642.

The previous prime is 1310041637. The next prime is 1310041693. The reversal of 1310041643 is 3461400131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1310041643 - 2²² = 1305847339 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1310041633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655020821 + 655020822.

It is an arithmetic number, because the mean of its divisors is an integer number (655020822).

Almost surely, 2^1310041643 is an apocalyptic number.

1310041643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310041643 is an equidigital number, since it uses as much as digits as its factorization.

1310041643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1310041643 is about 36194.4974132809. The cubic root of 1310041643 is about 1094.1957754167.

Adding to 1310041643 its reverse (3461400131), we get a palindrome (4771441774).

The spelling of 1310041643 in words is "one billion, three hundred ten million, forty-one thousand, six hundred forty-three".