20108003081 has 8 divisors (see below), whose sum is σ = 20670551424. Its totient is φ = 19553214240.

The previous prime is 20108003063. The next prime is 20108003119. The reversal of 20108003081 is 18030080102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20108003081 is a prime.

It is a super-2 number, since 2×20108003081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20108005081) 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, 1934621 + ... + 1944986.

It is an arithmetic number, because the mean of its divisors is an integer number (2583818928).

Almost surely, 2^20108003081 is an apocalyptic number.

It is an amenable number.

20108003081 is a deficient number, since it is larger than the sum of its proper divisors (562548343).

20108003081 is an equidigital number, since it uses as much as digits as its factorization.

20108003081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879751.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 20108003081 its reverse (18030080102), we get a palindrome (38138083183).

The spelling of 20108003081 in words is "twenty billion, one hundred eight million, three thousand, eighty-one".