1231223352 has 32 divisors (see below), whose sum is σ = 3080209680. Its totient is φ = 410120960.

The previous prime is 1231223321. The next prime is 1231223353. The reversal of 1231223352 is 2533221321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231223353) 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, 18652 + ... + 53012.

Almost surely, 2^1231223352 is an apocalyptic number.

1231223352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231223352 is an abundant number, since it is smaller than the sum of its proper divisors (1848986328).

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

1231223352 is a wasteful number, since it uses less digits than its factorization.

1231223352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35863 (or 35859 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 1231223352 is about 35088.7923987133. The cubic root of 1231223352 is about 1071.7963687436.

Adding to 1231223352 its reverse (2533221321), we get a palindrome (3764444673).

The spelling of 1231223352 in words is "one billion, two hundred thirty-one million, two hundred twenty-three thousand, three hundred fifty-two".