320002102122121 has 2 divisors, whose sum is σ = 320002102122122. Its totient is φ = 320002102122120.

The previous prime is 320002102122049. The next prime is 320002102122137. The reversal of 320002102122121 is 121221201200023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223609076302096 + 96393025820025 = 14953564^2 + 9817995^2 .

It is a cyclic number.

It is not a de Polignac number, because 320002102122121 - 2¹⁵ = 320002102089353 is a prime.

It is not a weakly prime, because it can be changed into another prime (320002102822121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160001051061060 + 160001051061061.

It is an arithmetic number, because the mean of its divisors is an integer number (160001051061061).

Almost surely, 2^{320002102122121} is an apocalyptic number.

It is an amenable number.

320002102122121 is a deficient number, since it is larger than the sum of its proper divisors (1).

320002102122121 is an equidigital number, since it uses as much as digits as its factorization.

320002102122121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 320002102122121 its reverse (121221201200023), we get a palindrome (441223303322144).

The spelling of 320002102122121 in words is "three hundred twenty trillion, two billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty-one".