23112111011 has 8 divisors (see below), whose sum is σ = 25382430000. Its totient is φ = 20869995040.

The previous prime is 23112111007. The next prime is 23112111023. The reversal of 23112111011 is 11011121132.

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 23112111011 - 2² = 23112111007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23112111311) 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, 7049036 + ... + 7052313.

It is an arithmetic number, because the mean of its divisors is an integer number (3172803750).

Almost surely, 2^23112111011 is an apocalyptic number.

23112111011 is a deficient number, since it is larger than the sum of its proper divisors (2270318989).

23112111011 is a wasteful number, since it uses less digits than its factorization.

23112111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14101509.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 23112111011 its reverse (11011121132), we get a palindrome (34123232143).

The spelling of 23112111011 in words is "twenty-three billion, one hundred twelve million, one hundred eleven thousand, eleven".