231323121200203 has 4 divisors (see below), whose sum is σ = 231332256848968. Its totient is φ = 231313985551440.

The previous prime is 231323121200179. The next prime is 231323121200287. The reversal of 231323121200203 is 302002121323132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231323121200203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231323121200803) 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, 4567786401 + ... + 4567837042.

It is an arithmetic number, because the mean of its divisors is an integer number (57833064212242).

Almost surely, 2^{231323121200203} is an apocalyptic number.

231323121200203 is a deficient number, since it is larger than the sum of its proper divisors (9135648765).

231323121200203 is an equidigital number, since it uses as much as digits as its factorization.

231323121200203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9135648764.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 231323121200203 its reverse (302002121323132), we get a palindrome (533325242523335).

The spelling of 231323121200203 in words is "two hundred thirty-one trillion, three hundred twenty-three billion, one hundred twenty-one million, two hundred thousand, two hundred three".