2330421521 has 2 divisors, whose sum is σ = 2330421522. Its totient is φ = 2330421520.

The previous prime is 2330421481. The next prime is 2330421551. The reversal of 2330421521 is 1251240332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1688305921 + 642115600 = 41089^2 + 25340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2330421521 is a prime.

It is not a weakly prime, because it can be changed into another prime (2330421551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165210760 + 1165210761.

It is an arithmetic number, because the mean of its divisors is an integer number (1165210761).

Almost surely, 2^2330421521 is an apocalyptic number.

It is an amenable number.

2330421521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2330421521 is an equidigital number, since it uses as much as digits as its factorization.

2330421521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2330421521 is about 48274.4396238838. The cubic root of 2330421521 is about 1325.8004459286.

Adding to 2330421521 its reverse (1251240332), we get a palindrome (3581661853).

The spelling of 2330421521 in words is "two billion, three hundred thirty million, four hundred twenty-one thousand, five hundred twenty-one".