11723011 has 2 divisors, whose sum is σ = 11723012. Its totient is φ = 11723010.

The previous prime is 11723009. The next prime is 11723071. The reversal of 11723011 is 11032711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11723011 - 2¹ = 11723009 is a prime.

It is a super-2 number, since 2×11723011² = 274857973812242, which contains 22 as substring.

Together with 11723009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11723071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861505 + 5861506.

It is an arithmetic number, because the mean of its divisors is an integer number (5861506).

Almost surely, 2^11723011 is an apocalyptic number.

11723011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11723011 is an equidigital number, since it uses as much as digits as its factorization.

11723011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 11723011 is about 3423.8882867290. Note that the first 3 decimals coincide. The cubic root of 11723011 is about 227.1676005488.

Adding to 11723011 its reverse (11032711), we get a palindrome (22755722).

The spelling of 11723011 in words is "eleven million, seven hundred twenty-three thousand, eleven".