1223132331 has 8 divisors (see below), whose sum is σ = 1635102720. Its totient is φ = 813291752.

The previous prime is 1223132329. The next prime is 1223132359. The reversal of 1223132331 is 1332313221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223132331 - 2¹ = 1223132329 is a prime.

It is a super-2 number, since 2×1223132331² = 2992105398274987122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223132298 and 1223132307.

It is not an unprimeable number, because it can be changed into a prime (1223132231) 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, 531111 + ... + 533408.

It is an arithmetic number, because the mean of its divisors is an integer number (204387840).

Almost surely, 2^1223132331 is an apocalyptic number.

1223132331 is a deficient number, since it is larger than the sum of its proper divisors (411970389).

1223132331 is a wasteful number, since it uses less digits than its factorization.

1223132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064905.

The product of its digits is 648, while the sum is 21.

The square root of 1223132331 is about 34973.3088368830. The cubic root of 1223132331 is about 1069.4434264412.

Adding to 1223132331 its reverse (1332313221), we get a palindrome (2555445552).

The spelling of 1223132331 in words is "one billion, two hundred twenty-three million, one hundred thirty-two thousand, three hundred thirty-one".