231310200133 has 4 divisors (see below), whose sum is σ = 231711084940. Its totient is φ = 230909315328.

The previous prime is 231310200127. The next prime is 231310200139. The reversal of 231310200133 is 331002013132.

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

It is an interprime number because it is at equal distance from previous prime (231310200127) and next prime (231310200139).

It can be written as a sum of positive squares in 2 ways, for example, as 189245010529 + 42065189604 = 435023^2 + 205098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231310200133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231310200133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231310200139) 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, 200441538 + ... + 200442691.

It is an arithmetic number, because the mean of its divisors is an integer number (57927771235).

Almost surely, 2^231310200133 is an apocalyptic number.

It is an amenable number.

231310200133 is a deficient number, since it is larger than the sum of its proper divisors (400884807).

231310200133 is an equidigital number, since it uses as much as digits as its factorization.

231310200133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400884806.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231310200133 its reverse (331002013132), we get a palindrome (562312213265).

The spelling of 231310200133 in words is "two hundred thirty-one billion, three hundred ten million, two hundred thousand, one hundred thirty-three".