1223132443 has 8 divisors (see below), whose sum is σ = 1317523536. Its totient is φ = 1128784800.

The previous prime is 1223132437. The next prime is 1223132527. The reversal of 1223132443 is 3442313221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1223132443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223132413) 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, 69888 + ... + 85618.

It is an arithmetic number, because the mean of its divisors is an integer number (164690442).

Almost surely, 2^1223132443 is an apocalyptic number.

1223132443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1223132443 is a deficient number, since it is larger than the sum of its proper divisors (94391093).

1223132443 is a wasteful number, since it uses less digits than its factorization.

1223132443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21725.

The product of its digits is 3456, while the sum is 25.

The square root of 1223132443 is about 34973.3104381041. The cubic root of 1223132443 is about 1069.4434590835.

Adding to 1223132443 its reverse (3442313221), we get a palindrome (4665445664).

The spelling of 1223132443 in words is "one billion, two hundred twenty-three million, one hundred thirty-two thousand, four hundred forty-three".