13203012281 has 2 divisors, whose sum is σ = 13203012282. Its totient is φ = 13203012280.

The previous prime is 13203012269. The next prime is 13203012289. The reversal of 13203012281 is 18221030231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12525191056 + 677821225 = 111916^2 + 26035^2 .

It is a cyclic number.

It is not a de Polignac number, because 13203012281 - 2³⁰ = 12129270457 is a prime.

It is a super-2 number, since 2×13203012281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13203012289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6601506140 + 6601506141.

It is an arithmetic number, because the mean of its divisors is an integer number (6601506141).

Almost surely, 2^13203012281 is an apocalyptic number.

It is an amenable number.

13203012281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13203012281 is an equidigital number, since it uses as much as digits as its factorization.

13203012281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 13203012281 in words is "thirteen billion, two hundred three million, twelve thousand, two hundred eighty-one".