231331203102133 has 8 divisors (see below), whose sum is σ = 235248783616440. Its totient is φ = 227417663417280.

The previous prime is 231331203102119. The next prime is 231331203102173. The reversal of 231331203102133 is 331201302133132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11362171291524 + 219969031810609 = 3370782^2 + 14831353^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231331203102133 - 2¹⁷ = 231331202971061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231331203102113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010091898 + ... + 1010320891.

It is an arithmetic number, because the mean of its divisors is an integer number (29406097952055).

Almost surely, 2^{231331203102133} is an apocalyptic number.

It is an amenable number.

231331203102133 is a deficient number, since it is larger than the sum of its proper divisors (3917580514307).

231331203102133 is a wasteful number, since it uses less digits than its factorization.

231331203102133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020414727.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 231331203102133 its reverse (331201302133132), we get a palindrome (562532505235265).

The spelling of 231331203102133 in words is "two hundred thirty-one trillion, three hundred thirty-one billion, two hundred three million, one hundred two thousand, one hundred thirty-three".