1021213303 has 8 divisors (see below), whose sum is σ = 1116919440. Its totient is φ = 925985280.

The previous prime is 1021213289. The next prime is 1021213313. The reversal of 1021213303 is 3033121201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1021213303 - 2⁹ = 1021212791 is a prime.

It is a super-2 number, since 2×1021213303² = 2085753220448339618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021213313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115050 + ... + 123607.

It is an arithmetic number, because the mean of its divisors is an integer number (139614930).

Almost surely, 2^1021213303 is an apocalyptic number.

1021213303 is a deficient number, since it is larger than the sum of its proper divisors (95706137).

1021213303 is a wasteful number, since it uses less digits than its factorization.

1021213303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239057.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1021213303 is about 31956.4281952786. The cubic root of 1021213303 is about 1007.0216815886.

Adding to 1021213303 its reverse (3033121201), we get a palindrome (4054334504).

The spelling of 1021213303 in words is "one billion, twenty-one million, two hundred thirteen thousand, three hundred three".