330023131021 has 4 divisors (see below), whose sum is σ = 331197590844. Its totient is φ = 328848671200.

The previous prime is 330023131013. The next prime is 330023131079. The reversal of 330023131021 is 120131320033.

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 154390055625 + 175633075396 = 392925^2 + 419086^2 .

It is a cyclic number.

It is not a de Polignac number, because 330023131021 - 2³ = 330023131013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 330023131021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330023131621) 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, 587229490 + ... + 587230051.

It is an arithmetic number, because the mean of its divisors is an integer number (82799397711).

Almost surely, 2^330023131021 is an apocalyptic number.

It is an amenable number.

330023131021 is a deficient number, since it is larger than the sum of its proper divisors (1174459823).

330023131021 is a wasteful number, since it uses less digits than its factorization.

330023131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174459822.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 330023131021 its reverse (120131320033), we get a palindrome (450154451054).

The spelling of 330023131021 in words is "three hundred thirty billion, twenty-three million, one hundred thirty-one thousand, twenty-one".