330040034120021 has 4 divisors (see below), whose sum is σ = 330069187036044. Its totient is φ = 330010881204000.

The previous prime is 330040034120011. The next prime is 330040034120053. The reversal of 330040034120021 is 120021430040033.

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 51159887032996 + 278880147087025 = 7152614^2 + 16699705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330040034120021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330040034120011) 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, 14576441030 + ... + 14576463671.

It is an arithmetic number, because the mean of its divisors is an integer number (82517296759011).

Almost surely, 2^{330040034120021} is an apocalyptic number.

It is an amenable number.

330040034120021 is a deficient number, since it is larger than the sum of its proper divisors (29152916023).

330040034120021 is a wasteful number, since it uses less digits than its factorization.

330040034120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29152916022.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 330040034120021 its reverse (120021430040033), we get a palindrome (450061464160054).

The spelling of 330040034120021 in words is "three hundred thirty trillion, forty billion, thirty-four million, one hundred twenty thousand, twenty-one".