201123000011 has 2 divisors, whose sum is σ = 201123000012. Its totient is φ = 201123000010.

The previous prime is 201122999999. The next prime is 201123000059. The reversal of 201123000011 is 110000321102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201123000011 - 2²² = 201118805707 is a prime.

It is a super-2 number, since 2×201123000011² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201122999956 and 201123000001.

It is not a weakly prime, because it can be changed into another prime (201123009011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561500005 + 100561500006.

It is an arithmetic number, because the mean of its divisors is an integer number (100561500006).

Almost surely, 2^201123000011 is an apocalyptic number.

201123000011 is a deficient number, since it is larger than the sum of its proper divisors (1).

201123000011 is an equidigital number, since it uses as much as digits as its factorization.

201123000011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 201123000011 its reverse (110000321102), we get a palindrome (311123321113).

The spelling of 201123000011 in words is "two hundred one billion, one hundred twenty-three million, eleven", and thus it is an aban number.