1231113321203 has 8 divisors (see below), whose sum is σ = 1310148667872. Its totient is φ = 1152813187456.

The previous prime is 1231113321167. The next prime is 1231113321227. The reversal of 1231113321203 is 3021233111321.

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 1231113321203 - 2³² = 1226818353907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231113321293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183799775 + ... + 183806472.

It is an arithmetic number, because the mean of its divisors is an integer number (163768583484).

Almost surely, 2^{1231113321203} is an apocalyptic number.

1231113321203 is a deficient number, since it is larger than the sum of its proper divisors (79035346669).

1231113321203 is a wasteful number, since it uses less digits than its factorization.

1231113321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367606461.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1231113321203 its reverse (3021233111321), we get a palindrome (4252346432524).

The spelling of 1231113321203 in words is "one trillion, two hundred thirty-one billion, one hundred thirteen million, three hundred twenty-one thousand, two hundred three".