1303222121009 has 2 divisors, whose sum is σ = 1303222121010. Its totient is φ = 1303222121008.

The previous prime is 1303222120957. The next prime is 1303222121053. The reversal of 1303222121009 is 9001212223031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 877459345984 + 425762775025 = 936728^2 + 652505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303222121009 is a prime.

It is a super-5 number, since 5×1303222121009⁵ (a number of 62 digits) contains 55555 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1303222121059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651611060504 + 651611060505.

It is an arithmetic number, because the mean of its divisors is an integer number (651611060505).

Almost surely, 2^{1303222121009} is an apocalyptic number.

It is an amenable number.

1303222121009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303222121009 is an equidigital number, since it uses as much as digits as its factorization.

1303222121009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 1303222121009 in words is "one trillion, three hundred three billion, two hundred twenty-two million, one hundred twenty-one thousand, nine".