1331223233 has 32 divisors (see below), whose sum is σ = 1512898560. Its totient is φ = 1164683520.

The previous prime is 1331223193. The next prime is 1331223241. The reversal of 1331223233 is 3323221331.

It is a cyclic number.

It is not a de Polignac number, because 1331223233 - 2¹⁶ = 1331157697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331223199 and 1331223208.

It is not an unprimeable number, because it can be changed into a prime (1331223263) 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, 2192816 + ... + 2193422.

It is an arithmetic number, because the mean of its divisors is an integer number (47278080).

Almost surely, 2^1331223233 is an apocalyptic number.

It is an amenable number.

1331223233 is a deficient number, since it is larger than the sum of its proper divisors (181675327).

1331223233 is a wasteful number, since it uses less digits than its factorization.

1331223233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its digits is 1944, while the sum is 23.

The square root of 1331223233 is about 36485.9319875483. The cubic root of 1331223233 is about 1100.0614932565.

Adding to 1331223233 its reverse (3323221331), we get a palindrome (4654444564).

The spelling of 1331223233 in words is "one billion, three hundred thirty-one million, two hundred twenty-three thousand, two hundred thirty-three".