123212233020 has 48 divisors (see below), whose sum is σ = 345059624448. Its totient is φ = 32850369600.

The previous prime is 123212233019. The next prime is 123212233069. The reversal of 123212233020 is 20332212321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 129177 + ... + 512943.

It is an arithmetic number, because the mean of its divisors is an integer number (7188742176).

Almost surely, 2^123212233020 is an apocalyptic number.

123212233020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123212233020 is an abundant number, since it is smaller than the sum of its proper divisors (221847391428).

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

123212233020 is a wasteful number, since it uses less digits than its factorization.

123212233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389130 (or 389128 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123212233020 its reverse (20332212321), we get a palindrome (143544445341).

The spelling of 123212233020 in words is "one hundred twenty-three billion, two hundred twelve million, two hundred thirty-three thousand, twenty".