330223321993 has 4 divisors (see below), whose sum is σ = 330319070100. Its totient is φ = 330127573888.

The previous prime is 330223321957. The next prime is 330223322027. The reversal of 330223321993 is 399123322033.

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 23824539904 + 306398782089 = 154352^2 + 553533^2 .

It is a cyclic number.

It is not a de Polignac number, because 330223321993 - 2⁹ = 330223321481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330223321193) 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, 47868880 + ... + 47875777.

It is an arithmetic number, because the mean of its divisors is an integer number (82579767525).

Almost surely, 2^330223321993 is an apocalyptic number.

It is an amenable number.

330223321993 is a deficient number, since it is larger than the sum of its proper divisors (95748107).

330223321993 is an equidigital number, since it uses as much as digits as its factorization.

330223321993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95748106.

The product of its (nonzero) digits is 157464, while the sum is 40.

Adding to 330223321993 its sum of digits (40), we get a palindrome (330223322033).

The spelling of 330223321993 in words is "three hundred thirty billion, two hundred twenty-three million, three hundred twenty-one thousand, nine hundred ninety-three".