1021133313 has 12 divisors (see below), whose sum is σ = 1492742160. Its totient is φ = 672553176.

The previous prime is 1021133303. The next prime is 1021133371. The reversal of 1021133313 is 3133311201.

It is a happy number.

It is not a de Polignac number, because 1021133313 - 2¹³ = 1021125121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021133303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 682743 + ... + 684236.

It is an arithmetic number, because the mean of its divisors is an integer number (124395180).

Almost surely, 2^1021133313 is an apocalyptic number.

It is an amenable number.

1021133313 is a deficient number, since it is larger than the sum of its proper divisors (471608847).

1021133313 is a wasteful number, since it uses less digits than its factorization.

1021133313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367068 (or 1367065 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1021133313 is about 31955.1766228885. The cubic root of 1021133313 is about 1006.9953881044.

Adding to 1021133313 its reverse (3133311201), we get a palindrome (4154444514).

The spelling of 1021133313 in words is "one billion, twenty-one million, one hundred thirty-three thousand, three hundred thirteen".