330131100020321 has 4 divisors (see below), whose sum is σ = 330155287234500. Its totient is φ = 330106912806144.

The previous prime is 330131100020317. The next prime is 330131100020339. The reversal of 330131100020321 is 123020001131033.

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 121489686439696 + 208641413580625 = 11022236^2 + 14444425^2 .

It is a cyclic number.

It is not a de Polignac number, because 330131100020321 - 2² = 330131100020317 is a prime.

It is a super-2 number, since 2×330131100020321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330131100020293 and 330131100020302.

It is not an unprimeable number, because it can be changed into a prime (330131100010321) 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, 12093586616 + ... + 12093613913.

It is an arithmetic number, because the mean of its divisors is an integer number (82538821808625).

Almost surely, 2^{330131100020321} is an apocalyptic number.

It is an amenable number.

330131100020321 is a deficient number, since it is larger than the sum of its proper divisors (24187214179).

330131100020321 is a wasteful number, since it uses less digits than its factorization.

330131100020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24187214178.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 330131100020321 its reverse (123020001131033), we get a palindrome (453151101151354).

The spelling of 330131100020321 in words is "three hundred thirty trillion, one hundred thirty-one billion, one hundred million, twenty thousand, three hundred twenty-one".