23011112 has 8 divisors (see below), whose sum is σ = 43145850. Its totient is φ = 11505552.

The previous prime is 23011111. The next prime is 23011117. The reversal of 23011112 is 21111032.

It can be written as a sum of positive squares in only one way, i.e., 12292036 + 10719076 = 3506^2 + 3274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×23011112² = 1059022550953088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23011093 and 23011102.

It is not an unprimeable number, because it can be changed into a prime (23011111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1438187 + ... + 1438202.

Almost surely, 2^23011112 is an apocalyptic number.

It is an amenable number.

23011112 is a deficient number, since it is larger than the sum of its proper divisors (20134738).

23011112 is a wasteful number, since it uses less digits than its factorization.

23011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876395 (or 2876391 counting only the distinct ones).

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

The square root of 23011112 is about 4796.9898895036. The cubic root of 23011112 is about 284.4324892346.

Adding to 23011112 its reverse (21111032), we get a palindrome (44122144).

The spelling of 23011112 in words is "twenty-three million, eleven thousand, one hundred twelve".