2320620521 has 2 divisors, whose sum is σ = 2320620522. Its totient is φ = 2320620520.

The previous prime is 2320620493. The next prime is 2320620539. The reversal of 2320620521 is 1250260232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2311686400 + 8934121 = 48080^2 + 2989^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320620521 - 2⁶ = 2320620457 is a prime.

It is a super-2 number, since 2×2320620521² = 10770559204972622882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2320610521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160310260 + 1160310261.

It is an arithmetic number, because the mean of its divisors is an integer number (1160310261).

Almost surely, 2^2320620521 is an apocalyptic number.

It is an amenable number.

2320620521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320620521 is an equidigital number, since it uses as much as digits as its factorization.

2320620521 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 2320620521 is about 48172.8193175363. The cubic root of 2320620521 is about 1323.9392047808.

Adding to 2320620521 its reverse (1250260232), we get a palindrome (3570880753).

The spelling of 2320620521 in words is "two billion, three hundred twenty million, six hundred twenty thousand, five hundred twenty-one".