1143212334 has 64 divisors (see below), whose sum is σ = 2538086400. Its totient is φ = 340400000.

The previous prime is 1143212333. The next prime is 1143212341. The reversal of 1143212334 is 4332123411.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143212333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 992659 + ... + 993809.

It is an arithmetic number, because the mean of its divisors is an integer number (39657600).

Almost surely, 2^1143212334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143212334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269043200).

1143212334 is an abundant number, since it is smaller than the sum of its proper divisors (1394874066).

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

1143212334 is a wasteful number, since it uses less digits than its factorization.

1143212334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417.

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

The square root of 1143212334 is about 33811.4231288776. The cubic root of 1143212334 is about 1045.6242186785.

Adding to 1143212334 its reverse (4332123411), we get a palindrome (5475335745).

The spelling of 1143212334 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, three hundred thirty-four".