1231112312203 has 8 divisors (see below), whose sum is σ = 1234331982576. Its totient is φ = 1227895020000.

The previous prime is 1231112312077. The next prime is 1231112312239. The reversal of 1231112312203 is 3022132111321.

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 1231112312203 - 2²⁵ = 1231078757771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231112312293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444525 + ... + 1630897.

It is an arithmetic number, because the mean of its divisors is an integer number (154291497822).

Almost surely, 2^{1231112312203} is an apocalyptic number.

1231112312203 is a deficient number, since it is larger than the sum of its proper divisors (3219670373).

1231112312203 is a wasteful number, since it uses less digits than its factorization.

1231112312203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189085.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1231112312203 its reverse (3022132111321), we get a palindrome (4253244423524).

The spelling of 1231112312203 in words is "one trillion, two hundred thirty-one billion, one hundred twelve million, three hundred twelve thousand, two hundred three".