231303230210133 has 20 divisors (see below), whose sum is σ = 351191425434828. Its totient is φ = 151674249314880.

The previous prime is 231303230210119. The next prime is 231303230210149. The reversal of 231303230210133 is 331012032303132.

231303230210133 is a `hidden beast` number, since 2 + 31 + 303 + 2 + 302 + 10 + 13 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 57666132567684 + 173637097642449 = 7593822^2 + 13177143^2 .

It is not a de Polignac number, because 231303230210133 - 2⁶ = 231303230210069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 231303230210097 and 231303230210106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231303230210113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23406515016 + ... + 23406524897.

Almost surely, 2^{231303230210133} is an apocalyptic number.

It is an amenable number.

231303230210133 is a deficient number, since it is larger than the sum of its proper divisors (119888195224695).

231303230210133 is an equidigital number, since it uses as much as digits as its factorization.

231303230210133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46813039986 (or 46813039977 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 231303230210133 its reverse (331012032303132), we get a palindrome (562315262513265).

The spelling of 231303230210133 in words is "two hundred thirty-one trillion, three hundred three billion, two hundred thirty million, two hundred ten thousand, one hundred thirty-three".