1200143313 has 12 divisors (see below), whose sum is σ = 1741758928. Its totient is φ = 796302360.

The previous prime is 1200143309. The next prime is 1200143327. The reversal of 1200143313 is 3133410021.

1200143313 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1200143313 - 2² = 1200143309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200143383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314095 + ... + 317892.

Almost surely, 2^1200143313 is an apocalyptic number.

It is an amenable number.

1200143313 is a deficient number, since it is larger than the sum of its proper divisors (541615615).

1200143313 is a wasteful number, since it uses less digits than its factorization.

1200143313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632204 (or 632201 counting only the distinct ones).

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

The square root of 1200143313 is about 34643.0846345992. The cubic root of 1200143313 is about 1062.7008710507.

Adding to 1200143313 its reverse (3133410021), we get a palindrome (4333553334).

The spelling of 1200143313 in words is "one billion, two hundred million, one hundred forty-three thousand, three hundred thirteen".