23112122011 has 8 divisors (see below), whose sum is σ = 25217923248. Its totient is φ = 21007104000.

The previous prime is 23112121997. The next prime is 23112122021. The reversal of 23112122011 is 11022121132.

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 23112122011 - 2¹⁷ = 23111990939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23112122021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133230 + ... + 252931.

It is an arithmetic number, because the mean of its divisors is an integer number (3152240406).

Almost surely, 2^23112122011 is an apocalyptic number.

23112122011 is a deficient number, since it is larger than the sum of its proper divisors (2105801237).

23112122011 is a wasteful number, since it uses less digits than its factorization.

23112122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391613.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 23112122011 its reverse (11022121132), we get a palindrome (34134243143).

The spelling of 23112122011 in words is "twenty-three billion, one hundred twelve million, one hundred twenty-two thousand, eleven".