1303221213 has 12 divisors (see below), whose sum is σ = 2151349408. Its totient is φ = 744697800.

The previous prime is 1303221211. The next prime is 1303221223. The reversal of 1303221213 is 3121223031.

1303221213 is a `hidden beast` number, since 130 + 322 + 1 + 213 = 666.

It is not a de Polignac number, because 1303221213 - 2¹ = 1303221211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10342963 + ... + 10343088.

Almost surely, 2^1303221213 is an apocalyptic number.

It is an amenable number.

1303221213 is a deficient number, since it is larger than the sum of its proper divisors (848128195).

1303221213 is a wasteful number, since it uses less digits than its factorization.

1303221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20686064 (or 20686061 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1303221213 is about 36100.1553043751. The cubic root of 1303221213 is about 1092.2935777301.

Adding to 1303221213 its reverse (3121223031), we get a palindrome (4424444244).

The spelling of 1303221213 in words is "one billion, three hundred three million, two hundred twenty-one thousand, two hundred thirteen".