1231103233303 has 4 divisors (see below), whose sum is σ = 1231122247360. Its totient is φ = 1231084219248.

The previous prime is 1231103233291. The next prime is 1231103233309. The reversal of 1231103233303 is 3033323011321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231103233303 - 2¹³ = 1231103225111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231103233309) 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, 9409575 + ... + 9539512.

It is an arithmetic number, because the mean of its divisors is an integer number (307780561840).

Almost surely, 2^{1231103233303} is an apocalyptic number.

1231103233303 is a deficient number, since it is larger than the sum of its proper divisors (19014057).

1231103233303 is an equidigital number, since it uses as much as digits as its factorization.

1231103233303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19014056.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1231103233303 its reverse (3033323011321), we get a palindrome (4264426244624).

The spelling of 1231103233303 in words is "one trillion, two hundred thirty-one billion, one hundred three million, two hundred thirty-three thousand, three hundred three".