1233231213 has 8 divisors (see below), whose sum is σ = 1656138400. Its totient is φ = 816239088.

The previous prime is 1233231211. The next prime is 1233231247. The reversal of 1233231213 is 3121323321.

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

It is not a de Polignac number, because 1233231213 - 2¹ = 1233231211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1233231213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233231211) 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, 1478278 + ... + 1479111.

It is an arithmetic number, because the mean of its divisors is an integer number (207017300).

Almost surely, 2^1233231213 is an apocalyptic number.

It is an amenable number.

1233231213 is a deficient number, since it is larger than the sum of its proper divisors (422907187).

1233231213 is a wasteful number, since it uses less digits than its factorization.

1233231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957531.

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

The square root of 1233231213 is about 35117.3918877812. The cubic root of 1233231213 is about 1072.3786755897.

Adding to 1233231213 its reverse (3121323321), we get a palindrome (4354554534).

The spelling of 1233231213 in words is "one billion, two hundred thirty-three million, two hundred thirty-one thousand, two hundred thirteen".