1313233212 has 24 divisors (see below), whose sum is σ = 3064961536. Its totient is φ = 437637168.

The previous prime is 1313233169. The next prime is 1313233237. The reversal of 1313233212 is 2123323131.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49383 + ... + 71169.

Almost surely, 2^1313233212 is an apocalyptic number.

1313233212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313233212 is an abundant number, since it is smaller than the sum of its proper divisors (1751728324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313233212 is a wasteful number, since it uses less digits than its factorization.

1313233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26817 (or 26815 counting only the distinct ones).

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

The square root of 1313233212 is about 36238.5597395923. The cubic root of 1313233212 is about 1095.0836273988.

Adding to 1313233212 its reverse (2123323131), we get a palindrome (3436556343).

The spelling of 1313233212 in words is "one billion, three hundred thirteen million, two hundred thirty-three thousand, two hundred twelve".