33240123 has 24 divisors (see below), whose sum is σ = 55112928. Its totient is φ = 18911232.

The previous prime is 33240113. The next prime is 33240127. The reversal of 33240123 is 32104233.

It is a de Polignac number, because none of the positive numbers 2^k-33240123 is a prime.

It is a super-2 number, since 2×33240123² = 2209811554110258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33240096 and 33240105.

It is not an unprimeable number, because it can be changed into a prime (33240127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15165 + ... + 17217.

It is an arithmetic number, because the mean of its divisors is an integer number (2296372).

Almost surely, 2^33240123 is an apocalyptic number.

33240123 is a deficient number, since it is larger than the sum of its proper divisors (21872805).

33240123 is a wasteful number, since it uses less digits than its factorization.

33240123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2320 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 33240123 is about 5765.4247892068. The cubic root of 33240123 is about 321.5295361977.

Adding to 33240123 its reverse (32104233), we get a palindrome (65344356).

The spelling of 33240123 in words is "thirty-three million, two hundred forty thousand, one hundred twenty-three".