1233231265 has 24 divisors (see below), whose sum is σ = 1723536360. Its totient is φ = 844639488.

The previous prime is 1233231253. The next prime is 1233231277. The reversal of 1233231265 is 5621323321.

It is an interprime number because it is at equal distance from previous prime (1233231253) and next prime (1233231277).

It can be written as a sum of positive squares in 4 ways, for example, as 52896529 + 1180334736 = 7273^2 + 34356^2 .

It is not a de Polignac number, because 1233231265 - 2⁷ = 1233231137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245701 + ... + 250669.

It is an arithmetic number, because the mean of its divisors is an integer number (71814015).

Almost surely, 2^1233231265 is an apocalyptic number.

It is an amenable number.

1233231265 is a deficient number, since it is larger than the sum of its proper divisors (490305095).

1233231265 is a wasteful number, since it uses less digits than its factorization.

1233231265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001 (or 5994 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 1233231265 is about 35117.3926281551. The cubic root of 1233231265 is about 1072.3786906622.

Adding to 1233231265 its reverse (5621323321), we get a palindrome (6854554586).

The spelling of 1233231265 in words is "one billion, two hundred thirty-three million, two hundred thirty-one thousand, two hundred sixty-five".