1303032220121 has 2 divisors, whose sum is σ = 1303032220122. Its totient is φ = 1303032220120.

The previous prime is 1303032220093. The next prime is 1303032220187. The reversal of 1303032220121 is 1210222303031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1208284608400 + 94747611721 = 1099220^2 + 307811^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303032220121 - 2²⁶ = 1302965111257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303032220093 and 1303032220102.

It is not a weakly prime, because it can be changed into another prime (1303032210121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651516110060 + 651516110061.

It is an arithmetic number, because the mean of its divisors is an integer number (651516110061).

Almost surely, 2^{1303032220121} is an apocalyptic number.

It is an amenable number.

1303032220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303032220121 is an equidigital number, since it uses as much as digits as its factorization.

1303032220121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1303032220121 its reverse (1210222303031), we get a palindrome (2513254523152).

The spelling of 1303032220121 in words is "one trillion, three hundred three billion, thirty-two million, two hundred twenty thousand, one hundred twenty-one".