23112011 has 8 divisors (see below), whose sum is σ = 25312560. Its totient is φ = 20971872.

The previous prime is 23112007. The next prime is 23112029. The reversal of 23112011 is 11021132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23112011 - 2² = 23112007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23111983 and 23112001.

It is not an unprimeable number, because it can be changed into a prime (23112031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14300 + ... + 15833.

It is an arithmetic number, because the mean of its divisors is an integer number (3164070).

Almost surely, 2^23112011 is an apocalyptic number.

23112011 is a deficient number, since it is larger than the sum of its proper divisors (2200549).

23112011 is a wasteful number, since it uses less digits than its factorization.

23112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30205.

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

The square root of 23112011 is about 4807.4952938094. The cubic root of 23112011 is about 284.8476091018.

Adding to 23112011 its reverse (11021132), we get a palindrome (34133143).

The spelling of 23112011 in words is "twenty-three million, one hundred twelve thousand, eleven".