123111031303 has 8 divisors (see below), whose sum is σ = 132583878000. Its totient is φ = 113638579968.

The previous prime is 123111031301. The next prime is 123111031313. The reversal of 123111031303 is 303130111321.

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 123111031303 - 2¹ = 123111031301 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 (123111031301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002348 + ... + 1118446.

It is an arithmetic number, because the mean of its divisors is an integer number (16572984750).

Almost surely, 2^123111031303 is an apocalyptic number.

123111031303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123111031303 is a deficient number, since it is larger than the sum of its proper divisors (9472846697).

123111031303 is a wasteful number, since it uses less digits than its factorization.

123111031303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197681.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 123111031303 its reverse (303130111321), we get a palindrome (426241142624).

The spelling of 123111031303 in words is "one hundred twenty-three billion, one hundred eleven million, thirty-one thousand, three hundred three".