123121677 has 16 divisors (see below), whose sum is σ = 193667072. Its totient is φ = 68085360.

The previous prime is 123121657. The next prime is 123121693. The reversal of 123121677 is 776121321.

It is not a de Polignac number, because 123121677 - 2⁷ = 123121549 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 (123121657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93913 + ... + 95214.

It is an arithmetic number, because the mean of its divisors is an integer number (12104192).

Almost surely, 2^123121677 is an apocalyptic number.

It is an amenable number.

123121677 is a deficient number, since it is larger than the sum of its proper divisors (70545395).

123121677 is a wasteful number, since it uses less digits than its factorization.

123121677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189168.

The product of its digits is 3528, while the sum is 30.

The square root of 123121677 is about 11096.0207732322. The cubic root of 123121677 is about 497.4829192052.

Adding to 123121677 its reverse (776121321), we get a palindrome (899242998).

The spelling of 123121677 in words is "one hundred twenty-three million, one hundred twenty-one thousand, six hundred seventy-seven".