231321200213203 has 4 divisors (see below), whose sum is σ = 231321930749728. Its totient is φ = 231320469676680.

The previous prime is 231321200213197. The next prime is 231321200213231. The reversal of 231321200213203 is 302312002123132.

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-231321200213203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231321200217203) 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, 364793088 + ... + 365426653.

It is an arithmetic number, because the mean of its divisors is an integer number (57830482687432).

Almost surely, 2^{231321200213203} is an apocalyptic number.

231321200213203 is a deficient number, since it is larger than the sum of its proper divisors (730536525).

231321200213203 is an equidigital number, since it uses as much as digits as its factorization.

231321200213203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730536524.

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

Adding to 231321200213203 its reverse (302312002123132), we get a palindrome (533633202336335).

The spelling of 231321200213203 in words is "two hundred thirty-one trillion, three hundred twenty-one billion, two hundred million, two hundred thirteen thousand, two hundred three".