2102303232121 has 2 divisors, whose sum is σ = 2102303232122. Its totient is φ = 2102303232120.

The previous prime is 2102303232023. The next prime is 2102303232143. The reversal of 2102303232121 is 1212323032012.

It is an a-pointer prime, because the next prime (2102303232143) can be obtained adding 2102303232121 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2100937190521 + 1366041600 = 1449461^2 + 36960^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102303232121 - 2³¹ = 2100155748473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102303232092 and 2102303232101.

It is not a weakly prime, because it can be changed into another prime (2102303232521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051151616060 + 1051151616061.

It is an arithmetic number, because the mean of its divisors is an integer number (1051151616061).

Almost surely, 2^{2102303232121} is an apocalyptic number.

It is an amenable number.

2102303232121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102303232121 is an equidigital number, since it uses as much as digits as its factorization.

2102303232121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2102303232121 its reverse (1212323032012), we get a palindrome (3314626264133).

The spelling of 2102303232121 in words is "two trillion, one hundred two billion, three hundred three million, two hundred thirty-two thousand, one hundred twenty-one".