123312110009 has 16 divisors (see below), whose sum is σ = 135614419776. Its totient is φ = 111195268800.

The previous prime is 123312109997. The next prime is 123312110041. The reversal of 123312110009 is 900011213321.

It is not a de Polignac number, because 123312110009 - 2¹⁶ = 123312044473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123312110209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631319 + ... + 803235.

It is an arithmetic number, because the mean of its divisors is an integer number (8475901236).

Almost surely, 2^123312110009 is an apocalyptic number.

It is an amenable number.

123312110009 is a deficient number, since it is larger than the sum of its proper divisors (12302309767).

123312110009 is a wasteful number, since it uses less digits than its factorization.

123312110009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172456.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 123312110009 in words is "one hundred twenty-three billion, three hundred twelve million, one hundred ten thousand, nine".