1233223231 has 16 divisors (see below), whose sum is σ = 1364221440. Its totient is φ = 1109516800.

The previous prime is 1233223207. The next prime is 1233223241. The reversal of 1233223231 is 1323223321.

It is not a de Polignac number, because 1233223231 - 2²³ = 1224834623 is a prime.

It is a super-2 number, since 2×1233223231² = 3041679074956158722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233223241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37410 + ... + 62176.

It is an arithmetic number, because the mean of its divisors is an integer number (85263840).

Almost surely, 2^1233223231 is an apocalyptic number.

1233223231 is a deficient number, since it is larger than the sum of its proper divisors (130998209).

1233223231 is a wasteful number, since it uses less digits than its factorization.

1233223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24914.

The product of its digits is 1296, while the sum is 22.

The square root of 1233223231 is about 35117.2782402053. The cubic root of 1233223231 is about 1072.3763619536.

Adding to 1233223231 its reverse (1323223321), we get a palindrome (2556446552).

The spelling of 1233223231 in words is "one billion, two hundred thirty-three million, two hundred twenty-three thousand, two hundred thirty-one".