123687311 has 8 divisors (see below), whose sum is σ = 135060048. Its totient is φ = 112336000.

The previous prime is 123687287. The next prime is 123687323. The reversal of 123687311 is 113786321.

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 123687311 - 2¹⁴ = 123670927 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 (123687341) 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, 8231 + ... + 17751.

It is an arithmetic number, because the mean of its divisors is an integer number (16882506).

Almost surely, 2^123687311 is an apocalyptic number.

123687311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123687311 is a deficient number, since it is larger than the sum of its proper divisors (11372737).

123687311 is a wasteful number, since it uses less digits than its factorization.

123687311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10713.

The product of its digits is 6048, while the sum is 32.

The square root of 123687311 is about 11121.4797127001. The cubic root of 123687311 is about 498.2435852391.

The spelling of 123687311 in words is "one hundred twenty-three million, six hundred eighty-seven thousand, three hundred eleven".