1231236352 has 36 divisors (see below), whose sum is σ = 2460289216. Its totient is φ = 614960640.

The previous prime is 1231236343. The next prime is 1231236379. The reversal of 1231236352 is 2536321321.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1231236352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313183 + ... + 317089.

Almost surely, 2^1231236352 is an apocalyptic number.

It is an amenable number.

1231236352 is a deficient number, since it is larger than the sum of its proper divisors (1229052864).

1231236352 is an equidigital number, since it uses as much as digits as its factorization.

1231236352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154 (or 5140 counting only the distinct ones).

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

The square root of 1231236352 is about 35088.9776425589. The cubic root of 1231236352 is about 1071.8001409549.

Adding to 1231236352 its reverse (2536321321), we get a palindrome (3767557673).

The spelling of 1231236352 in words is "one billion, two hundred thirty-one million, two hundred thirty-six thousand, three hundred fifty-two".