12013204312 has 8 divisors (see below), whose sum is σ = 22524758100. Its totient is φ = 6006602152.

The previous prime is 12013204211. The next prime is 12013204321. The reversal of 12013204312 is 21340231021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12013204312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750825262 + ... + 750825277.

Almost surely, 2^12013204312 is an apocalyptic number.

It is an amenable number.

12013204312 is a deficient number, since it is larger than the sum of its proper divisors (10511553788).

12013204312 is a wasteful number, since it uses less digits than its factorization.

12013204312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501650545 (or 1501650541 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12013204312 its reverse (21340231021), we get a palindrome (33353435333).

The spelling of 12013204312 in words is "twelve billion, thirteen million, two hundred four thousand, three hundred twelve".