330121973 has 2 divisors, whose sum is σ = 330121974. Its totient is φ = 330121972.

The previous prime is 330121969. The next prime is 330121991. The reversal of 330121973 is 379121033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172318129 + 157803844 = 13127^2 + 12562^2 .

It is a cyclic number.

It is not a de Polignac number, because 330121973 - 2² = 330121969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330121273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165060986 + 165060987.

It is an arithmetic number, because the mean of its divisors is an integer number (165060987).

Almost surely, 2^330121973 is an apocalyptic number.

It is an amenable number.

330121973 is a deficient number, since it is larger than the sum of its proper divisors (1).

330121973 is an equidigital number, since it uses as much as digits as its factorization.

330121973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 330121973 is about 18169.2590107577. The cubic root of 330121973 is about 691.1274524179.

The spelling of 330121973 in words is "three hundred thirty million, one hundred twenty-one thousand, nine hundred seventy-three".