1143223032 has 32 divisors (see below), whose sum is σ = 3266352000. Its totient is φ = 326635104.

The previous prime is 1143223031. The next prime is 1143223033. The reversal of 1143223032 is 2303223411.

It is an interprime number because it is at equal distance from previous prime (1143223031) and next prime (1143223033).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143223031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3402282 + ... + 3402617.

It is an arithmetic number, because the mean of its divisors is an integer number (102073500).

Almost surely, 2^1143223032 is an apocalyptic number.

1143223032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143223032 is an abundant number, since it is smaller than the sum of its proper divisors (2123128968).

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

1143223032 is a wasteful number, since it uses less digits than its factorization.

1143223032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804915 (or 6804911 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1143223032 is about 33811.5813294794. The cubic root of 1143223032 is about 1045.6274802637.

Adding to 1143223032 its reverse (2303223411), we get a palindrome (3446446443).

The spelling of 1143223032 in words is "one billion, one hundred forty-three million, two hundred twenty-three thousand, thirty-two".