123312101 has 8 divisors (see below), whose sum is σ = 142435584. Its totient is φ = 105507520.

The previous prime is 123312061. The next prime is 123312103. The reversal of 123312101 is 101213321.

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 123312101 - 2⁶ = 123312037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123312103) 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, 329525 + ... + 329898.

It is an arithmetic number, because the mean of its divisors is an integer number (17804448).

Almost surely, 2^123312101 is an apocalyptic number.

123312101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123312101 is a deficient number, since it is larger than the sum of its proper divisors (19123483).

123312101 is a wasteful number, since it uses less digits than its factorization.

123312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659451.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 123312101 is about 11104.5981917402. The cubic root of 123312101 is about 497.7392615291.

Adding to 123312101 its reverse (101213321), we get a palindrome (224525422).

The spelling of 123312101 in words is "one hundred twenty-three million, three hundred twelve thousand, one hundred one".