123312041 has 4 divisors (see below), whose sum is σ = 124403412. Its totient is φ = 122220672.

The previous prime is 123312037. The next prime is 123312053. The reversal of 123312041 is 140213321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1849600 + 121462441 = 1360^2 + 11021^2 .

It is a cyclic number.

It is not a de Polignac number, because 123312041 - 2² = 123312037 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123312001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545516 + ... + 545741.

It is an arithmetic number, because the mean of its divisors is an integer number (31100853).

Almost surely, 2^123312041 is an apocalyptic number.

It is an amenable number.

123312041 is a deficient number, since it is larger than the sum of its proper divisors (1091371).

123312041 is a wasteful number, since it uses less digits than its factorization.

123312041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091370.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 123312041 is about 11104.5954901563. The cubic root of 123312041 is about 497.7391808007.

Adding to 123312041 its reverse (140213321), we get a palindrome (263525362).

The spelling of 123312041 in words is "one hundred twenty-three million, three hundred twelve thousand, forty-one".