1303152121 has 2 divisors, whose sum is σ = 1303152122. Its totient is φ = 1303152120.

The previous prime is 1303152073. The next prime is 1303152133. The reversal of 1303152121 is 1212513031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758396521 + 544755600 = 27539^2 + 23340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303152121 - 2¹⁵ = 1303119353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1303152161) 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, 651576060 + 651576061.

It is an arithmetic number, because the mean of its divisors is an integer number (651576061).

Almost surely, 2^1303152121 is an apocalyptic number.

It is an amenable number.

1303152121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303152121 is an equidigital number, since it uses as much as digits as its factorization.

1303152121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1303152121 is about 36099.1983428995. The cubic root of 1303152121 is about 1092.2742742584.

Adding to 1303152121 its reverse (1212513031), we get a palindrome (2515665152).

The spelling of 1303152121 in words is "one billion, three hundred three million, one hundred fifty-two thousand, one hundred twenty-one".