233033221231 has 4 divisors (see below), whose sum is σ = 246741057792. Its totient is φ = 219325384672.

The previous prime is 233033221229. The next prime is 233033221237. The reversal of 233033221231 is 132122330332.

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

It is not a de Polignac number, because 233033221231 - 2¹ = 233033221229 is a prime.

It is a super-2 number, since 2×233033221231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233033221196 and 233033221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233033221237) 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, 6853918255 + ... + 6853918288.

It is an arithmetic number, because the mean of its divisors is an integer number (61685264448).

Almost surely, 2^233033221231 is an apocalyptic number.

233033221231 is a deficient number, since it is larger than the sum of its proper divisors (13707836561).

233033221231 is a wasteful number, since it uses less digits than its factorization.

233033221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13707836560.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 233033221231 its reverse (132122330332), we get a palindrome (365155551563).

The spelling of 233033221231 in words is "two hundred thirty-three billion, thirty-three million, two hundred twenty-one thousand, two hundred thirty-one".