20085101387 has 8 divisors (see below), whose sum is σ = 22375975440. Its totient is φ = 17900779680.

The previous prime is 20085101347. The next prime is 20085101429. The reversal of 20085101387 is 78310158002.

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-20085101387 is a prime.

It is a super-2 number, since 2×20085101387² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20085101317) 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, 26637689 + ... + 26638442.

It is an arithmetic number, because the mean of its divisors is an integer number (2796996930).

Almost surely, 2^20085101387 is an apocalyptic number.

20085101387 is a deficient number, since it is larger than the sum of its proper divisors (2290874053).

20085101387 is a wasteful number, since it uses less digits than its factorization.

20085101387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53276173.

The product of its (nonzero) digits is 13440, while the sum is 35.

Adding to 20085101387 its reverse (78310158002), we get a palindrome (98395259389).

The spelling of 20085101387 in words is "twenty billion, eighty-five million, one hundred one thousand, three hundred eighty-seven".