123203303212 has 24 divisors (see below), whose sum is σ = 236425007952. Its totient is φ = 55711334400.

The previous prime is 123203303203. The next prime is 123203303233. The reversal of 123203303212 is 212303302321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7245589 + ... + 7262572.

It is an arithmetic number, because the mean of its divisors is an integer number (9851041998).

Almost surely, 2^123203303212 is an apocalyptic number.

It is an amenable number.

123203303212 is a deficient number, since it is larger than the sum of its proper divisors (113221704740).

123203303212 is a wasteful number, since it uses less digits than its factorization.

123203303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14508369 (or 14508367 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123203303212 its reverse (212303302321), we get a palindrome (335506605533).

The spelling of 123203303212 in words is "one hundred twenty-three billion, two hundred three million, three hundred three thousand, two hundred twelve".