330144045421 has 4 divisors (see below), whose sum is σ = 330183464572. Its totient is φ = 330104626272.

The previous prime is 330144045409. The next prime is 330144045461. The reversal of 330144045421 is 124540441033.

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 35931098025 + 294212947396 = 189555^2 + 542414^2 .

It is a cyclic number.

It is not a de Polignac number, because 330144045421 - 2¹¹ = 330144043373 is a prime.

It is a super-2 number, since 2×330144045421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330144045401) 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, 19697010 + ... + 19713763.

It is an arithmetic number, because the mean of its divisors is an integer number (82545866143).

Almost surely, 2^330144045421 is an apocalyptic number.

It is an amenable number.

330144045421 is a deficient number, since it is larger than the sum of its proper divisors (39419151).

330144045421 is an equidigital number, since it uses as much as digits as its factorization.

330144045421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39419150.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 330144045421 its reverse (124540441033), we get a palindrome (454684486454).

The spelling of 330144045421 in words is "three hundred thirty billion, one hundred forty-four million, forty-five thousand, four hundred twenty-one".