1231332303 has 4 divisors (see below), whose sum is σ = 1641776408. Its totient is φ = 820888200.

The previous prime is 1231332281. The next prime is 1231332337. The reversal of 1231332303 is 3032331321.

1231332303 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1231332303 - 2⁹ = 1231331791 is a prime.

It is a super-2 number, since 2×1231332303² = 3032358480822567618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231332303.

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205222048 + ... + 205222053.

It is an arithmetic number, because the mean of its divisors is an integer number (410444102).

Almost surely, 2^1231332303 is an apocalyptic number.

1231332303 is a deficient number, since it is larger than the sum of its proper divisors (410444105).

1231332303 is an equidigital number, since it uses as much as digits as its factorization.

1231332303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410444104.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1231332303 is about 35090.3448686387. The cubic root of 1231332303 is about 1071.8279822446.

Adding to 1231332303 its reverse (3032331321), we get a palindrome (4263663624).

The spelling of 1231332303 in words is "one billion, two hundred thirty-one million, three hundred thirty-two thousand, three hundred three".