201231231210313 has 4 divisors (see below), whose sum is σ = 204065473903488. Its totient is φ = 198396988517140.

The previous prime is 201231231210281. The next prime is 201231231210323. The reversal of 201231231210313 is 313012132132102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201231231210313 - 2⁵ = 201231231210281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201231231210323) 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, 1417121346481 + ... + 1417121346622.

It is an arithmetic number, because the mean of its divisors is an integer number (51016368475872).

Almost surely, 2^{201231231210313} is an apocalyptic number.

It is an amenable number.

201231231210313 is a deficient number, since it is larger than the sum of its proper divisors (2834242693175).

201231231210313 is an equidigital number, since it uses as much as digits as its factorization.

201231231210313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834242693174.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 201231231210313 its reverse (313012132132102), we get a palindrome (514243363342415).

The spelling of 201231231210313 in words is "two hundred one trillion, two hundred thirty-one billion, two hundred thirty-one million, two hundred ten thousand, three hundred thirteen".