1321041303 has 24 divisors (see below), whose sum is σ = 1977142128. Its totient is φ = 849284352.

The previous prime is 1321041299. The next prime is 1321041307. The reversal of 1321041303 is 3031401231.

1321041303 is a `hidden beast` number, since 1 + 321 + 0 + 41 + 303 = 666.

It is an interprime number because it is at equal distance from previous prime (1321041299) and next prime (1321041307).

It is not a de Polignac number, because 1321041303 - 2² = 1321041299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321041307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20076 + ... + 55182.

It is an arithmetic number, because the mean of its divisors is an integer number (82380922).

Almost surely, 2^1321041303 is an apocalyptic number.

1321041303 is a deficient number, since it is larger than the sum of its proper divisors (656100825).

1321041303 is a wasteful number, since it uses less digits than its factorization.

1321041303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35263 (or 35260 counting only the distinct ones).

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

The square root of 1321041303 is about 36346.1318849751. The cubic root of 1321041303 is about 1097.2496864636.

Adding to 1321041303 its reverse (3031401231), we get a palindrome (4352442534).

The spelling of 1321041303 in words is "one billion, three hundred twenty-one million, forty-one thousand, three hundred three".