123312042111 has 8 divisors (see below), whose sum is σ = 164512835200. Its totient is φ = 82159638552.

The previous prime is 123312042083. The next prime is 123312042131. The reversal of 123312042111 is 111240213321.

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

It is not a de Polignac number, because 123312042111 - 2¹⁸ = 123311779967 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 (123312042131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12091435 + ... + 12101628.

It is an arithmetic number, because the mean of its divisors is an integer number (20564104400).

Almost surely, 2^123312042111 is an apocalyptic number.

123312042111 is a deficient number, since it is larger than the sum of its proper divisors (41200793089).

123312042111 is a wasteful number, since it uses less digits than its factorization.

123312042111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24194765.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 123312042111 its reverse (111240213321), we get a palindrome (234552255432).

The spelling of 123312042111 in words is "one hundred twenty-three billion, three hundred twelve million, forty-two thousand, one hundred eleven".