123213203020 has 24 divisors (see below), whose sum is σ = 258763050000. Its totient is φ = 49282362432.

The previous prime is 123213202991. The next prime is 123213203033. The reversal of 123213203020 is 20302312321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181431 + ... + 528529.

It is an arithmetic number, because the mean of its divisors is an integer number (10781793750).

Almost surely, 2^123213203020 is an apocalyptic number.

123213203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123213203020 is an abundant number, since it is smaller than the sum of its proper divisors (135549846980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123213203020 is a wasteful number, since it uses less digits than its factorization.

123213203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364857 (or 364855 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123213203020 its reverse (20302312321), we get a palindrome (143515515341).

The spelling of 123213203020 in words is "one hundred twenty-three billion, two hundred thirteen million, two hundred three thousand, twenty".