1143120401 has 8 divisors (see below), whose sum is σ = 1200830400. Its totient is φ = 1086077872.

The previous prime is 1143120397. The next prime is 1143120421. The reversal of 1143120401 is 1040213411.

It is a happy number.

1143120401 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143120401 - 2² = 1143120397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143120401.

It is not an unprimeable number, because it can be changed into a prime (1143120421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163355 + ... + 170208.

It is an arithmetic number, because the mean of its divisors is an integer number (150103800).

Almost surely, 2^1143120401 is an apocalyptic number.

It is an amenable number.

1143120401 is a deficient number, since it is larger than the sum of its proper divisors (57709999).

1143120401 is a wasteful number, since it uses less digits than its factorization.

1143120401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333735.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1143120401 is about 33810.0636053823. The cubic root of 1143120401 is about 1045.5961894882.

Adding to 1143120401 its reverse (1040213411), we get a palindrome (2183333812).

The spelling of 1143120401 in words is "one billion, one hundred forty-three million, one hundred twenty thousand, four hundred one".