13143242312 has 32 divisors (see below), whose sum is σ = 25357234680. Its totient is φ = 6383769600.

The previous prime is 13143242297. The next prime is 13143242339. The reversal of 13143242312 is 21324234131.

It can be written as a sum of positive squares in 4 ways, for example, as 11823082756 + 1320159556 = 108734^2 + 36334^2 .

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, 110633 + ... + 196280.

Almost surely, 2^13143242312 is an apocalyptic number.

It is an amenable number.

13143242312 is a deficient number, since it is larger than the sum of its proper divisors (12213992368).

13143242312 is a wasteful number, since it uses less digits than its factorization.

13143242312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307073 (or 307069 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

Adding to 13143242312 its reverse (21324234131), we get a palindrome (34467476443).

The spelling of 13143242312 in words is "thirteen billion, one hundred forty-three million, two hundred forty-two thousand, three hundred twelve".