2123312433123 has 32 divisors (see below), whose sum is σ = 3288960048640. Its totient is φ = 1193287541760.

The previous prime is 2123312433101. The next prime is 2123312433133. The reversal of 2123312433123 is 3213342133212.

It is not a de Polignac number, because 2123312433123 - 2¹² = 2123312429027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123312433133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11058483 + ... + 11248851.

It is an arithmetic number, because the mean of its divisors is an integer number (102780001520).

Almost surely, 2^{2123312433123} is an apocalyptic number.

2123312433123 is a deficient number, since it is larger than the sum of its proper divisors (1165647615517).

2123312433123 is a wasteful number, since it uses less digits than its factorization.

2123312433123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199147.

The product of its digits is 15552, while the sum is 30.

Adding to 2123312433123 its reverse (3213342133212), we get a palindrome (5336654566335).

The spelling of 2123312433123 in words is "two trillion, one hundred twenty-three billion, three hundred twelve million, four hundred thirty-three thousand, one hundred twenty-three".