233120310221 has 4 divisors (see below), whose sum is σ = 236403694944. Its totient is φ = 229836925500.

The previous prime is 233120310179. The next prime is 233120310233. The reversal of 233120310221 is 122013021332.

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 233120310221 - 2²⁶ = 233053201357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233120310193 and 233120310202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233120310721) 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, 1641692255 + ... + 1641692396.

It is an arithmetic number, because the mean of its divisors is an integer number (59100923736).

Almost surely, 2^233120310221 is an apocalyptic number.

It is an amenable number.

233120310221 is a deficient number, since it is larger than the sum of its proper divisors (3283384723).

233120310221 is an equidigital number, since it uses as much as digits as its factorization.

233120310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283384722.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 233120310221 its reverse (122013021332), we get a palindrome (355133331553).

The spelling of 233120310221 in words is "two hundred thirty-three billion, one hundred twenty million, three hundred ten thousand, two hundred twenty-one".