1143213234 has 16 divisors (see below), whose sum is σ = 2365269120. Its totient is φ = 367930640.

The previous prime is 1143213221. The next prime is 1143213259. The reversal of 1143213234 is 4323123411.

It is a happy number.

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, 3284922 + ... + 3285269.

It is an arithmetic number, because the mean of its divisors is an integer number (147829320).

Almost surely, 2^1143213234 is an apocalyptic number.

1143213234 is an abundant number, since it is smaller than the sum of its proper divisors (1222055886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143213234 is a wasteful number, since it uses less digits than its factorization.

1143213234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570225.

The product of its digits is 1728, while the sum is 24.

The square root of 1143213234 is about 33811.4364379865. The cubic root of 1143213234 is about 1045.6244930695.

Adding to 1143213234 its reverse (4323123411), we get a palindrome (5466336645).

The spelling of 1143213234 in words is "one billion, one hundred forty-three million, two hundred thirteen thousand, two hundred thirty-four".