23123042 has 16 divisors (see below), whose sum is σ = 35506680. Its totient is φ = 11290752.

The previous prime is 23123029. The next prime is 23123047. The reversal of 23123042 is 24032132.

It can be written as a sum of positive squares in 4 ways, for example, as 23049601 + 73441 = 4801^2 + 271^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23123042.

It is not an unprimeable number, because it can be changed into a prime (23123047) 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, 15188 + ... + 16640.

Almost surely, 2^23123042 is an apocalyptic number.

23123042 is a deficient number, since it is larger than the sum of its proper divisors (12383638).

23123042 is a wasteful number, since it uses less digits than its factorization.

23123042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23123042 is about 4808.6424279624. The cubic root of 23123042 is about 284.8929196579.

Adding to 23123042 its reverse (24032132), we get a palindrome (47155174).

It can be divided in two parts, 2312 and 3042, that multiplied together give a square (7033104 = 2652²).

The spelling of 23123042 in words is "twenty-three million, one hundred twenty-three thousand, forty-two".