233313323545 has 4 divisors (see below), whose sum is σ = 279975988260. Its totient is φ = 186650658832.

The previous prime is 233313323539. The next prime is 233313323569. The reversal of 233313323545 is 545323313332.

It is a happy number.

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 126192615696 + 107120707849 = 355236^2 + 327293^2 .

It is a cyclic number.

It is not a de Polignac number, because 233313323545 - 2¹⁷ = 233313192473 is a prime.

It is a super-2 number, since 2×233313323545² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23331332350 + ... + 23331332359.

It is an arithmetic number, because the mean of its divisors is an integer number (69993997065).

Almost surely, 2^233313323545 is an apocalyptic number.

It is an amenable number.

233313323545 is a deficient number, since it is larger than the sum of its proper divisors (46662664715).

233313323545 is an equidigital number, since it uses as much as digits as its factorization.

233313323545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46662664714.

The product of its digits is 291600, while the sum is 37.

Adding to 233313323545 its reverse (545323313332), we get a palindrome (778636636877).

The spelling of 233313323545 in words is "two hundred thirty-three billion, three hundred thirteen million, three hundred twenty-three thousand, five hundred forty-five".