12203012312 has 32 divisors (see below), whose sum is σ = 24220112400. Its totient is φ = 5754102144.

The previous prime is 12203012293. The next prime is 12203012351. The reversal of 12203012312 is 21321030221.

It is a congruent number.

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, 601643 + ... + 621594.

Almost surely, 2^12203012312 is an apocalyptic number.

It is an amenable number.

12203012312 is a deficient number, since it is larger than the sum of its proper divisors (12017100088).

12203012312 is a wasteful number, since it uses less digits than its factorization.

12203012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223315 (or 1223311 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12203012312 its reverse (21321030221), we get a palindrome (33524042533).

The spelling of 12203012312 in words is "twelve billion, two hundred three million, twelve thousand, three hundred twelve".