233121113 has 4 divisors (see below), whose sum is σ = 233223120. Its totient is φ = 233019108.

The previous prime is 233121107. The next prime is 233121151. The reversal of 233121113 is 311121332.

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 233121113 - 2⁸ = 233120857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233121091 and 233121100.

It is not an unprimeable number, because it can be changed into a prime (233121173) 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, 47495 + ... + 52172.

It is an arithmetic number, because the mean of its divisors is an integer number (58305780).

Almost surely, 2^233121113 is an apocalyptic number.

It is an amenable number.

233121113 is a deficient number, since it is larger than the sum of its proper divisors (102007).

233121113 is an equidigital number, since it uses as much as digits as its factorization.

233121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102006.

The product of its digits is 108, while the sum is 17.

The square root of 233121113 is about 15268.3041952929. The cubic root of 233121113 is about 615.4515493144.

Adding to 233121113 its reverse (311121332), we get a palindrome (544242445).

The spelling of 233121113 in words is "two hundred thirty-three million, one hundred twenty-one thousand, one hundred thirteen".