650138011 has 2 divisors, whose sum is σ = 650138012. Its totient is φ = 650138010.

The previous prime is 650138009. The next prime is 650138023. The reversal of 650138011 is 110831056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 650138011 - 2¹ = 650138009 is a prime.

It is a super-2 number, since 2×650138011² = 845358866694072242, which contains 22 as substring.

Together with 650138009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (650138311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325069005 + 325069006.

It is an arithmetic number, because the mean of its divisors is an integer number (325069006).

Almost surely, 2^650138011 is an apocalyptic number.

650138011 is a deficient number, since it is larger than the sum of its proper divisors (1).

650138011 is an equidigital number, since it uses as much as digits as its factorization.

650138011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 650138011 is about 25497.8040427014. The cubic root of 650138011 is about 866.3004089640.

Adding to 650138011 its reverse (110831056), we get a palindrome (760969067).

The spelling of 650138011 in words is "six hundred fifty million, one hundred thirty-eight thousand, eleven".