23031105 has 16 divisors (see below), whose sum is σ = 36975744. Its totient is φ = 12241280.

The previous prime is 23031103. The next prime is 23031121. The reversal of 23031105 is 50113032.

It is a happy number.

It is not a de Polignac number, because 23031105 - 2¹ = 23031103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (23031103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2197 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (2310984).

Almost surely, 2^23031105 is an apocalyptic number.

It is an amenable number.

23031105 is a deficient number, since it is larger than the sum of its proper divisors (13944639).

23031105 is a wasteful number, since it uses less digits than its factorization.

23031105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 23031105 is about 4799.0733480538. The cubic root of 23031105 is about 284.5148409352.

Adding to 23031105 its reverse (50113032), we get a palindrome (73144137).

The spelling of 23031105 in words is "twenty-three million, thirty-one thousand, one hundred five".