231113203033 has 4 divisors (see below), whose sum is σ = 231227787700. Its totient is φ = 230998618368.

The previous prime is 231113203019. The next prime is 231113203063. The reversal of 231113203033 is 330302311132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75816521104 + 155296681929 = 275348^2 + 394077^2 .

It is a cyclic number.

It is not a de Polignac number, because 231113203033 - 2⁵ = 231113203001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231113202995 and 231113203013.

It is not an unprimeable number, because it can be changed into a prime (231113203063) 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, 57289308 + ... + 57293341.

It is an arithmetic number, because the mean of its divisors is an integer number (57806946925).

Almost surely, 2^231113203033 is an apocalyptic number.

It is an amenable number.

231113203033 is a deficient number, since it is larger than the sum of its proper divisors (114584667).

231113203033 is a wasteful number, since it uses less digits than its factorization.

231113203033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114584666.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231113203033 its reverse (330302311132), we get a palindrome (561415514165).

The spelling of 231113203033 in words is "two hundred thirty-one billion, one hundred thirteen million, two hundred three thousand, thirty-three".