1340130511 has 4 divisors (see below), whose sum is σ = 1341475672. Its totient is φ = 1338785352.

The previous prime is 1340130509. The next prime is 1340130529. The reversal of 1340130511 is 1150310431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1150310431 = 23 ⋅50013497.

It is a cyclic number.

It is not a de Polignac number, because 1340130511 - 2¹ = 1340130509 is a prime.

It is a super-2 number, since 2×1340130511² = 3591899573026242242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340131511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671085 + ... + 673078.

It is an arithmetic number, because the mean of its divisors is an integer number (335368918).

Almost surely, 2^1340130511 is an apocalyptic number.

1340130511 is a deficient number, since it is larger than the sum of its proper divisors (1345161).

1340130511 is an equidigital number, since it uses as much as digits as its factorization.

1340130511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345160.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1340130511 is about 36607.7930364560. The cubic root of 1340130511 is about 1102.5095625650.

Adding to 1340130511 its reverse (1150310431), we get a palindrome (2490440942).

The spelling of 1340130511 in words is "one billion, three hundred forty million, one hundred thirty thousand, five hundred eleven".