212031103011123 has 16 divisors (see below), whose sum is σ = 308446844858496. Its totient is φ = 128487878898240.

The previous prime is 212031103011109. The next prime is 212031103011131. The reversal of 212031103011123 is 321110301130212.

It is not a de Polignac number, because 212031103011123 - 2¹⁰ = 212031103010099 is a prime.

It is a super-3 number, since 3×212031103011123³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 212031103011123.

It is not an unprimeable number, because it can be changed into a prime (212031103011193) 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 15 ways as a sum of consecutive naturals, for example, 395225290 + ... + 395761407.

It is an arithmetic number, because the mean of its divisors is an integer number (19277927803656).

Almost surely, 2^{212031103011123} is an apocalyptic number.

212031103011123 is a deficient number, since it is larger than the sum of its proper divisors (96415741847373).

212031103011123 is a wasteful number, since it uses less digits than its factorization.

212031103011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790994834.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 212031103011123 its reverse (321110301130212), we get a palindrome (533141404141335).

The spelling of 212031103011123 in words is "two hundred twelve trillion, thirty-one billion, one hundred three million, eleven thousand, one hundred twenty-three".