23111043112 has 16 divisors (see below), whose sum is σ = 43372723860. Its totient is φ = 11544983424.

The previous prime is 23111043107. The next prime is 23111043121. The reversal of 23111043112 is 21134011132.

It can be written as a sum of positive squares in 2 ways, for example, as 18505249156 + 4605793956 = 136034^2 + 67866^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23111043112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307943 + ... + 1325494.

Almost surely, 2^23111043112 is an apocalyptic number.

It is an amenable number.

23111043112 is a deficient number, since it is larger than the sum of its proper divisors (20261680748).

23111043112 is a wasteful number, since it uses less digits than its factorization.

23111043112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634540 (or 2634536 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 23111043112 its reverse (21134011132), we get a palindrome (44245054244).

The spelling of 23111043112 in words is "twenty-three billion, one hundred eleven million, forty-three thousand, one hundred twelve".