123020221124 has 12 divisors (see below), whose sum is σ = 216046114704. Its totient is φ = 61292759784.

The previous prime is 123020221123. The next prime is 123020221133. The reversal of 123020221124 is 421122020321.

It is a junction number, because it is equal to n+sod(n) for n = 123020221096 and 123020221105.

It is not an unprimeable number, because it can be changed into a prime (123020221123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54336422 + ... + 54338685.

It is an arithmetic number, because the mean of its divisors is an integer number (18003842892).

Almost surely, 2^123020221124 is an apocalyptic number.

It is an amenable number.

123020221124 is a deficient number, since it is larger than the sum of its proper divisors (93025893580).

123020221124 is a wasteful number, since it uses less digits than its factorization.

123020221124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108675394 (or 108675392 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123020221124 its reverse (421122020321), we get a palindrome (544142241445).

The spelling of 123020221124 in words is "one hundred twenty-three billion, twenty million, two hundred twenty-one thousand, one hundred twenty-four".