212020311123 has 24 divisors (see below), whose sum is σ = 315902230800. Its totient is φ = 136926085824.

The previous prime is 212020311077. The next prime is 212020311133. The reversal of 212020311123 is 321113020212.

212020311123 is a `hidden beast` number, since 212 + 0 + 20 + 311 + 123 = 666.

212020311123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212020311123 - 2⁸ = 212020310867 is a prime.

It is a super-2 number, since 2×212020311123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212020311096 and 212020311105.

It is not an unprimeable number, because it can be changed into a prime (212020311133) 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 23 ways as a sum of consecutive naturals, for example, 1313913 + ... + 1466426.

It is an arithmetic number, because the mean of its divisors is an integer number (13162592950).

Almost surely, 2^212020311123 is an apocalyptic number.

212020311123 is a deficient number, since it is larger than the sum of its proper divisors (103881919677).

212020311123 is a wasteful number, since it uses less digits than its factorization.

212020311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780611 (or 2780608 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212020311123 its reverse (321113020212), we get a palindrome (533133331335).

The spelling of 212020311123 in words is "two hundred twelve billion, twenty million, three hundred eleven thousand, one hundred twenty-three".