212112331123 has 16 divisors (see below), whose sum is σ = 264533195520. Its totient is φ = 165231424800.

The previous prime is 212112331103. The next prime is 212112331129. The reversal of 212112331123 is 321133211212.

It is a cyclic number.

It is not a de Polignac number, because 212112331123 - 2⁹ = 212112330611 is a prime.

It is a super-2 number, since 2×212112331123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212112331094 and 212112331103.

It is not an unprimeable number, because it can be changed into a prime (212112331129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171688 + ... + 673573.

It is an arithmetic number, because the mean of its divisors is an integer number (16533324720).

Almost surely, 2^212112331123 is an apocalyptic number.

212112331123 is a deficient number, since it is larger than the sum of its proper divisors (52420864397).

212112331123 is a wasteful number, since it uses less digits than its factorization.

212112331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848538.

The product of its digits is 432, while the sum is 22.

Adding to 212112331123 its reverse (321133211212), we get a palindrome (533245542335).

The spelling of 212112331123 in words is "two hundred twelve billion, one hundred twelve million, three hundred thirty-one thousand, one hundred twenty-three".