233111131000133 has 4 divisors (see below), whose sum is σ = 233846497344300. Its totient is φ = 232375764655968.

The previous prime is 233111131000109. The next prime is 233111131000151. The reversal of 233111131000133 is 331000131111332.

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 76453916026849 + 156657214973284 = 8743793^2 + 12516278^2 .

It is a cyclic number.

It is not a de Polignac number, because 233111131000133 - 2³⁴ = 233093951130949 is a prime.

It is a super-2 number, since 2×233111131000133² (a number of 30 digits) contains 22 as substring.

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 = 233111131000099 and 233111131000108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233111131000103) 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, 367683171608 + ... + 367683172241.

It is an arithmetic number, because the mean of its divisors is an integer number (58461624336075).

Almost surely, 2^{233111131000133} is an apocalyptic number.

It is an amenable number.

233111131000133 is a deficient number, since it is larger than the sum of its proper divisors (735366344167).

233111131000133 is an equidigital number, since it uses as much as digits as its factorization.

233111131000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735366344166.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 233111131000133 its reverse (331000131111332), we get a palindrome (564111262111465).

The spelling of 233111131000133 in words is "two hundred thirty-three trillion, one hundred eleven billion, one hundred thirty-one million, one hundred thirty-three", and thus it is an aban number.