1345440011 has 2 divisors, whose sum is σ = 1345440012. Its totient is φ = 1345440010.

The previous prime is 1345439999. The next prime is 1345440017. The reversal of 1345440011 is 1100445431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345440011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345440017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672720005 + 672720006.

It is an arithmetic number, because the mean of its divisors is an integer number (672720006).

Almost surely, 2^1345440011 is an apocalyptic number.

1345440011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345440011 is an equidigital number, since it uses as much as digits as its factorization.

1345440011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1345440011 is about 36680.2400619189. The cubic root of 1345440011 is about 1103.9636649085.

Adding to 1345440011 its reverse (1100445431), we get a palindrome (2445885442).

The spelling of 1345440011 in words is "one billion, three hundred forty-five million, four hundred forty thousand, eleven".