231032312210133 has 128 divisors (see below), whose sum is σ = 410017556275200. Its totient is φ = 125708496224256.

The previous prime is 231032312210057. The next prime is 231032312210159. The reversal of 231032312210133 is 331012213230132.

231032312210133 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 3 + 2 + 312 + 210 + 133 = 666.

It is not a de Polignac number, because 231032312210133 - 2¹⁰ = 231032312209109 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 = 231032312210097 and 231032312210106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231032312212133) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1808648935 + ... + 1808776667.

It is an arithmetic number, because the mean of its divisors is an integer number (3203262158400).

Almost surely, 2^{231032312210133} is an apocalyptic number.

231032312210133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231032312210133 is a deficient number, since it is larger than the sum of its proper divisors (178985244065067).

231032312210133 is a wasteful number, since it uses less digits than its factorization.

231032312210133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129648 (or 129642 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 231032312210133 its reverse (331012213230132), we get a palindrome (562044525440265).

The spelling of 231032312210133 in words is "two hundred thirty-one trillion, thirty-two billion, three hundred twelve million, two hundred ten thousand, one hundred thirty-three".