12123203310 has 64 divisors (see below), whose sum is σ = 32561222400. Its totient is φ = 3209586336.

The previous prime is 12123203299. The next prime is 12123203317. The reversal of 12123203310 is 1330232121.

12123203310 is a `hidden beast` number, since 1 + 2 + 12 + 320 + 331 + 0 = 666.

It is a super-2 number, since 2×12123203310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123203317) 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 31 ways as a sum of consecutive naturals, for example, 123984 + ... + 199043.

It is an arithmetic number, because the mean of its divisors is an integer number (508769100).

Almost surely, 2^12123203310 is an apocalyptic number.

12123203310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123203310 is an abundant number, since it is smaller than the sum of its proper divisors (20438019090).

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

12123203310 is a wasteful number, since it uses less digits than its factorization.

12123203310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323182 (or 323176 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12123203310 its reverse (1330232121), we get a palindrome (13453435431).

The spelling of 12123203310 in words is "twelve billion, one hundred twenty-three million, two hundred three thousand, three hundred ten".