511340109011 has 2 divisors, whose sum is σ = 511340109012. Its totient is φ = 511340109010.

The previous prime is 511340108977. The next prime is 511340109013. The reversal of 511340109011 is 110901043115.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511340109011 is a prime.

It is a super-2 number, since 2×511340109011² (a number of 24 digits) contains 22 as substring.

Together with 511340109013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (511340109013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255670054505 + 255670054506.

It is an arithmetic number, because the mean of its divisors is an integer number (255670054506).

Almost surely, 2^511340109011 is an apocalyptic number.

511340109011 is a deficient number, since it is larger than the sum of its proper divisors (1).

511340109011 is an equidigital number, since it uses as much as digits as its factorization.

511340109011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 26.

The spelling of 511340109011 in words is "five hundred eleven billion, three hundred forty million, one hundred nine thousand, eleven".