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23000011 is a prime number
BaseRepresentation
bin101011110111…
…1001111001011
31121021112002021
41113233033023
521342000021
62140545311
7366332266
oct127571713
947245067
1023000011
1111a8a281
127852237
1349c3a98
1430a9cdd
152044c41
hex15ef3cb

23000011 has 2 divisors, whose sum is σ = 23000012. Its totient is φ = 23000010.

The previous prime is 23000009. The next prime is 23000027. The reversal of 23000011 is 11000032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23000011 - 21 = 23000009 is a prime.

Together with 23000009, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 22999958 and 23000003.

It is not a weakly prime, because it can be changed into another prime (23000071) 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 as a sum of consecutive naturals, namely, 11500005 + 11500006.

It is an arithmetic number, because the mean of its divisors is an integer number (11500006).

Almost surely, 223000011 is an apocalyptic number.

23000011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23000011 is an equidigital number, since it uses as much as digits as its factorization.

23000011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 23000011 is about 4795.8326701419. The cubic root of 23000011 is about 284.3867433222.

Adding to 23000011 its reverse (11000032), we get a palindrome (34000043).

The spelling of 23000011 in words is "twenty-three million, eleven", and thus it is an aban number and an uban number.