231033330211133 has 4 divisors (see below), whose sum is σ = 231033370121280. Its totient is φ = 231033290300988.

The previous prime is 231033330211127. The next prime is 231033330211153. The reversal of 231033330211133 is 331112033330132.

231033330211133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231033330211133 - 2⁶ = 231033330211069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 231033330211096 and 231033330211105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231033330211153) 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, 9416693 + ... + 23467866.

It is an arithmetic number, because the mean of its divisors is an integer number (57758342530320).

Almost surely, 2^{231033330211133} is an apocalyptic number.

It is an amenable number.

231033330211133 is a deficient number, since it is larger than the sum of its proper divisors (39910147).

231033330211133 is an equidigital number, since it uses as much as digits as its factorization.

231033330211133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39910146.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 231033330211133 its reverse (331112033330132), we get a palindrome (562145363541265).

The spelling of 231033330211133 in words is "two hundred thirty-one trillion, thirty-three billion, three hundred thirty million, two hundred eleven thousand, one hundred thirty-three".