233331013 has 4 divisors (see below), whose sum is σ = 241376940. Its totient is φ = 225285088.

The previous prime is 233330989. The next prime is 233331023. The reversal of 233331013 is 310133332.

233331013 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 can be written as a sum of positive squares in 2 ways, for example, as 52751169 + 180579844 = 7263^2 + 13438^2 .

It is a cyclic number.

It is not a de Polignac number, because 233331013 - 2⁹ = 233330501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233331023) 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, 4022920 + ... + 4022977.

It is an arithmetic number, because the mean of its divisors is an integer number (60344235).

Almost surely, 2^233331013 is an apocalyptic number.

It is an amenable number.

233331013 is a deficient number, since it is larger than the sum of its proper divisors (8045927).

233331013 is an equidigital number, since it uses as much as digits as its factorization.

233331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045926.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 233331013 is about 15275.1763655940. The cubic root of 233331013 is about 615.6362094483.

Adding to 233331013 its reverse (310133332), we get a palindrome (543464345).

The spelling of 233331013 in words is "two hundred thirty-three million, three hundred thirty-one thousand, thirteen".