1143112377 has 8 divisors (see below), whose sum is σ = 1662708960. Its totient is φ = 692795360.

The previous prime is 1143112357. The next prime is 1143112391. The reversal of 1143112377 is 7732113411.

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 1143112377 - 2¹⁶ = 1143046841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143112307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17319852 + ... + 17319917.

It is an arithmetic number, because the mean of its divisors is an integer number (207838620).

Almost surely, 2^1143112377 is an apocalyptic number.

It is an amenable number.

1143112377 is a deficient number, since it is larger than the sum of its proper divisors (519596583).

1143112377 is a wasteful number, since it uses less digits than its factorization.

1143112377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34639783.

The product of its digits is 3528, while the sum is 30.

The square root of 1143112377 is about 33809.9449422799. The cubic root of 1143112377 is about 1045.5937430025.

Adding to 1143112377 its reverse (7732113411), we get a palindrome (8875225788).

The spelling of 1143112377 in words is "one billion, one hundred forty-three million, one hundred twelve thousand, three hundred seventy-seven".