1231332233 has 8 divisors (see below), whose sum is σ = 1236554208. Its totient is φ = 1226122144.

The previous prime is 1231332203. The next prime is 1231332281. The reversal of 1231332233 is 3322331321.

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 1231332233 - 2⁶ = 1231332169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231332199 and 1231332208.

It is not an unprimeable number, because it can be changed into a prime (1231332203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246941 + ... + 251877.

It is an arithmetic number, because the mean of its divisors is an integer number (154569276).

Almost surely, 2^1231332233 is an apocalyptic number.

It is an amenable number.

1231332233 is a deficient number, since it is larger than the sum of its proper divisors (5221975).

1231332233 is an equidigital number, since it uses as much as digits as its factorization.

1231332233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943.

The product of its digits is 1944, while the sum is 23.

The square root of 1231332233 is about 35090.3438712133. The cubic root of 1231332233 is about 1071.8279619338.

Adding to 1231332233 its reverse (3322331321), we get a palindrome (4553663554).

The spelling of 1231332233 in words is "one billion, two hundred thirty-one million, three hundred thirty-two thousand, two hundred thirty-three".