20320103011 has 8 divisors (see below), whose sum is σ = 21887079984. Its totient is φ = 18753682080.

The previous prime is 20320102991. The next prime is 20320103017. The reversal of 20320103011 is 11030102302.

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 20320103011 - 2¹³ = 20320094819 is a prime.

It is a super-2 number, since 2×20320103011² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20320102982 and 20320103000.

It is not an unprimeable number, because it can be changed into a prime (20320103017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61501 + ... + 210766.

It is an arithmetic number, because the mean of its divisors is an integer number (2735884998).

Almost surely, 2^20320103011 is an apocalyptic number.

20320103011 is a deficient number, since it is larger than the sum of its proper divisors (1566976973).

20320103011 is a wasteful number, since it uses less digits than its factorization.

20320103011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278021.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20320103011 its reverse (11030102302), we get a palindrome (31350205313).

The spelling of 20320103011 in words is "twenty billion, three hundred twenty million, one hundred three thousand, eleven".