231310223201 has 4 divisors (see below), whose sum is σ = 236951936004. Its totient is φ = 225668510400.

The previous prime is 231310223191. The next prime is 231310223237. The reversal of 231310223201 is 102322013132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40481037601 + 190829185600 = 201199^2 + 436840^2 .

It is a cyclic number.

It is not a de Polignac number, because 231310223201 - 2²² = 231306028897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231310223251) 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, 2820856340 + ... + 2820856421.

It is an arithmetic number, because the mean of its divisors is an integer number (59237984001).

Almost surely, 2^231310223201 is an apocalyptic number.

It is an amenable number.

231310223201 is a deficient number, since it is larger than the sum of its proper divisors (5641712803).

231310223201 is an equidigital number, since it uses as much as digits as its factorization.

231310223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641712802.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231310223201 its reverse (102322013132), we get a palindrome (333632236333).

The spelling of 231310223201 in words is "two hundred thirty-one billion, three hundred ten million, two hundred twenty-three thousand, two hundred one".