1020320011 has 8 divisors (see below), whose sum is σ = 1032172064. Its totient is φ = 1008495360.

The previous prime is 1020319999. The next prime is 1020320027. The reversal of 1020320011 is 1100230201.

1020320011 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 1020320011 - 2¹⁵ = 1020287243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020320011.

It is not an unprimeable number, because it can be changed into a prime (1020320071) 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, 73441 + ... + 86221.

It is an arithmetic number, because the mean of its divisors is an integer number (129021508).

Almost surely, 2^1020320011 is an apocalyptic number.

1020320011 is a deficient number, since it is larger than the sum of its proper divisors (11852053).

1020320011 is an equidigital number, since it uses as much as digits as its factorization.

1020320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13701.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1020320011 is about 31942.4484189926. The cubic root of 1020320011 is about 1006.7279699058.

Adding to 1020320011 its reverse (1100230201), we get a palindrome (2120550212).

The spelling of 1020320011 in words is "one billion, twenty million, three hundred twenty thousand, eleven".