123102331121 has 64 divisors (see below), whose sum is σ = 166344192000. Its totient is φ = 88204723200.

The previous prime is 123102331103. The next prime is 123102331123. The reversal of 123102331121 is 121133201321.

It is a happy number.

It is not a de Polignac number, because 123102331121 - 2¹⁴ = 123102314737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123102331093 and 123102331102.

It is not an unprimeable number, because it can be changed into a prime (123102331123) 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 63 ways as a sum of consecutive naturals, for example, 11931461 + ... + 11941773.

It is an arithmetic number, because the mean of its divisors is an integer number (2599128000).

Almost surely, 2^123102331121 is an apocalyptic number.

123102331121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123102331121 is a deficient number, since it is larger than the sum of its proper divisors (43241860879).

123102331121 is a wasteful number, since it uses less digits than its factorization.

123102331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10590.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123102331121 its reverse (121133201321), we get a palindrome (244235532442).

The spelling of 123102331121 in words is "one hundred twenty-three billion, one hundred two million, three hundred thirty-one thousand, one hundred twenty-one".