1020321313 has 8 divisors (see below), whose sum is σ = 1113945120. Its totient is φ = 926842080.

The previous prime is 1020321311. The next prime is 1020321349. The reversal of 1020321313 is 3131230201.

1020321313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1020321313 - 2¹ = 1020321311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020321311) 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, 21108 + ... + 49861.

It is an arithmetic number, because the mean of its divisors is an integer number (139243140).

Almost surely, 2^1020321313 is an apocalyptic number.

It is an amenable number.

1020321313 is a deficient number, since it is larger than the sum of its proper divisors (93623807).

1020321313 is a wasteful number, since it uses less digits than its factorization.

1020321313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72287.

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

The square root of 1020321313 is about 31942.4687993899. The cubic root of 1020321313 is about 1006.7283981241.

Adding to 1020321313 its reverse (3131230201), we get a palindrome (4151551514).

The spelling of 1020321313 in words is "one billion, twenty million, three hundred twenty-one thousand, three hundred thirteen".