1143342012 has 12 divisors (see below), whose sum is σ = 2667798056. Its totient is φ = 381114000.

The previous prime is 1143342001. The next prime is 1143342017. The reversal of 1143342012 is 2102433411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1143342012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143342017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47639239 + ... + 47639262.

Almost surely, 2^1143342012 is an apocalyptic number.

1143342012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143342012 is an abundant number, since it is smaller than the sum of its proper divisors (1524456044).

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

1143342012 is a wasteful number, since it uses less digits than its factorization.

1143342012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95278508 (or 95278506 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1143342012 is about 33813.3407400097. The cubic root of 1143342012 is about 1045.6637532796.

Adding to 1143342012 its reverse (2102433411), we get a palindrome (3245775423).

The spelling of 1143342012 in words is "one billion, one hundred forty-three million, three hundred forty-two thousand, twelve".