231232232133 has 24 divisors (see below), whose sum is σ = 384630582336. Its totient is φ = 131124052800.

The previous prime is 231232232129. The next prime is 231232232171. The reversal of 231232232133 is 331232232132.

231232232133 is a `hidden beast` number, since 2 + 3 + 12 + 322 + 321 + 3 + 3 = 666.

It is not a de Polignac number, because 231232232133 - 2² = 231232232129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231232232097 and 231232232106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231232232233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14000728 + ... + 14017233.

It is an arithmetic number, because the mean of its divisors is an integer number (16026274264).

Almost surely, 2^231232232133 is an apocalyptic number.

It is an amenable number.

231232232133 is a deficient number, since it is larger than the sum of its proper divisors (153398350203).

231232232133 is a wasteful number, since it uses less digits than its factorization.

231232232133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28018105 (or 28018102 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 231232232133 its reverse (331232232132), we get a palindrome (562464464265).

Subtracting 231232232133 from its reverse (331232232132), we obtain a palindrome (99999999999).

The spelling of 231232232133 in words is "two hundred thirty-one billion, two hundred thirty-two million, two hundred thirty-two thousand, one hundred thirty-three".