23381042 has 4 divisors (see below), whose sum is σ = 35071566. Its totient is φ = 11690520.

The previous prime is 23381023. The next prime is 23381063. The reversal of 23381042 is 24018332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21446161 + 1934881 = 4631^2 + 1391^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23380999 and 23381017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5845259 + ... + 5845262.

Almost surely, 2^23381042 is an apocalyptic number.

23381042 is a deficient number, since it is larger than the sum of its proper divisors (11690524).

23381042 is a wasteful number, since it uses less digits than its factorization.

23381042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11690523.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 23381042 is about 4835.3947098453. The cubic root of 23381042 is about 285.9485864514.

Adding to 23381042 its reverse (24018332), we get a palindrome (47399374).

The spelling of 23381042 in words is "twenty-three million, three hundred eighty-one thousand, forty-two".