233121112102231 has 4 divisors (see below), whose sum is σ = 233129112993232. Its totient is φ = 233113111211232.

The previous prime is 233121112102217. The next prime is 233121112102397. The reversal of 233121112102231 is 132201211121332.

233121112102231 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.

It is a cyclic number.

It is not a de Polignac number, because 233121112102231 - 2³⁵ = 233086752363863 is a prime.

It is a super-2 number, since 2×233121112102231² (a number of 30 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 = 233121112102196 and 233121112102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233121112102031) 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, 4000401795 + ... + 4000460068.

It is an arithmetic number, because the mean of its divisors is an integer number (58282278248308).

Almost surely, 2^{233121112102231} is an apocalyptic number.

233121112102231 is a deficient number, since it is larger than the sum of its proper divisors (8000891001).

233121112102231 is an equidigital number, since it uses as much as digits as its factorization.

233121112102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000891000.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 233121112102231 its reverse (132201211121332), we get a palindrome (365322323223563).

The spelling of 233121112102231 in words is "two hundred thirty-three trillion, one hundred twenty-one billion, one hundred twelve million, one hundred two thousand, two hundred thirty-one".