1143211322 has 16 divisors (see below), whose sum is σ = 1871564832. Its totient is φ = 519403920.

The previous prime is 1143211313. The next prime is 1143211337. The reversal of 1143211322 is 2231123411.

It is a junction number, because it is equal to n+sod(n) for n = 1143211294 and 1143211303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42953 + ... + 64275.

It is an arithmetic number, because the mean of its divisors is an integer number (116972802).

Almost surely, 2^1143211322 is an apocalyptic number.

1143211322 is a deficient number, since it is larger than the sum of its proper divisors (728353510).

1143211322 is a wasteful number, since it uses less digits than its factorization.

1143211322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23773.

The product of its digits is 288, while the sum is 20.

The square root of 1143211322 is about 33811.4081635178. The cubic root of 1143211322 is about 1045.6239101409.

Adding to 1143211322 its reverse (2231123411), we get a palindrome (3374334733).

The spelling of 1143211322 in words is "one billion, one hundred forty-three million, two hundred eleven thousand, three hundred twenty-two".