123315242011 has 8 divisors (see below), whose sum is σ = 132947460464. Its totient is φ = 113703942240.

The previous prime is 123315242009. The next prime is 123315242027. The reversal of 123315242011 is 110242513321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123315242011 - 2¹ = 123315242009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123315242051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5217420 + ... + 5241001.

It is an arithmetic number, because the mean of its divisors is an integer number (16618432558).

Almost surely, 2^123315242011 is an apocalyptic number.

123315242011 is a deficient number, since it is larger than the sum of its proper divisors (9632218453).

123315242011 is a wasteful number, since it uses less digits than its factorization.

123315242011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459341.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 123315242011 its reverse (110242513321), we get a palindrome (233557755332).

The spelling of 123315242011 in words is "one hundred twenty-three billion, three hundred fifteen million, two hundred forty-two thousand, eleven".