123111303122 has 8 divisors (see below), whose sum is σ = 184671575676. Its totient is φ = 61554111232.

The previous prime is 123111303113. The next prime is 123111303241. The reversal of 123111303122 is 221303111321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115442973361 + 7668329761 = 339769^2 + 87569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123111303094 and 123111303103.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 667523 + ... + 831750.

Almost surely, 2^123111303122 is an apocalyptic number.

123111303122 is a deficient number, since it is larger than the sum of its proper divisors (61560272554).

123111303122 is a wasteful number, since it uses less digits than its factorization.

123111303122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540332.

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

Adding to 123111303122 its reverse (221303111321), we get a palindrome (344414414443).

The spelling of 123111303122 in words is "one hundred twenty-three billion, one hundred eleven million, three hundred three thousand, one hundred twenty-two".