1231200323 has 8 divisors (see below), whose sum is σ = 1296342720. Its totient is φ = 1166092200.

The previous prime is 1231200317. The next prime is 1231200329. The reversal of 1231200323 is 3230021321.

It is an interprime number because it is at equal distance from previous prime (1231200317) and next prime (1231200329).

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

It is a cyclic number.

It is not a de Polignac number, because 1231200323 - 2⁸ = 1231200067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231200329) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 101636 + ... + 113102.

It is an arithmetic number, because the mean of its divisors is an integer number (162042840).

Almost surely, 2^1231200323 is an apocalyptic number.

1231200323 is a deficient number, since it is larger than the sum of its proper divisors (65142397).

1231200323 is a wasteful number, since it uses less digits than its factorization.

1231200323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17137.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1231200323 is about 35088.4642439649. The cubic root of 1231200323 is about 1071.7896863513.

Adding to 1231200323 its reverse (3230021321), we get a palindrome (4461221644).

The spelling of 1231200323 in words is "one billion, two hundred thirty-one million, two hundred thousand, three hundred twenty-three".