2120112303123 has 16 divisors (see below), whose sum is σ = 2994379539840. Its totient is φ = 1329697735296.

The previous prime is 2120112303119. The next prime is 2120112303139. The reversal of 2120112303123 is 3213032110212.

It is not a de Polignac number, because 2120112303123 - 2² = 2120112303119 is a prime.

It is a super-2 number, since 2×2120112303123² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120112303123.

It is not an unprimeable number, because it can be changed into a prime (2120112303623) 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 15 ways as a sum of consecutive naturals, for example, 8767165 + ... + 9005742.

It is an arithmetic number, because the mean of its divisors is an integer number (187148721240).

Almost surely, 2^{2120112303123} is an apocalyptic number.

2120112303123 is a deficient number, since it is larger than the sum of its proper divisors (874267236717).

2120112303123 is a wasteful number, since it uses less digits than its factorization.

2120112303123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17775266.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2120112303123 its reverse (3213032110212), we get a palindrome (5333144413335).

The spelling of 2120112303123 in words is "two trillion, one hundred twenty billion, one hundred twelve million, three hundred three thousand, one hundred twenty-three".