1143215411 has 8 divisors (see below), whose sum is σ = 1237603584. Its totient is φ = 1049748480.

The previous prime is 1143215401. The next prime is 1143215419. The reversal of 1143215411 is 1145123411.

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 1143215411 - 2⁶ = 1143215347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143215419) 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, 227726 + ... + 232691.

It is an arithmetic number, because the mean of its divisors is an integer number (154700448).

Almost surely, 2^1143215411 is an apocalyptic number.

1143215411 is a deficient number, since it is larger than the sum of its proper divisors (94388173).

1143215411 is a wasteful number, since it uses less digits than its factorization.

1143215411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460621.

The product of its digits is 480, while the sum is 23.

The square root of 1143215411 is about 33811.4686312204. The cubic root of 1143215411 is about 1045.6251567903.

Adding to 1143215411 its reverse (1145123411), we get a palindrome (2288338822).

The spelling of 1143215411 in words is "one billion, one hundred forty-three million, two hundred fifteen thousand, four hundred eleven".