20011010995 has 16 divisors (see below), whose sum is σ = 25960235040. Its totient is φ = 14756338944.

The previous prime is 20011010989. The next prime is 20011011001. The reversal of 20011010995 is 59901011002.

It is an interprime number because it is at equal distance from previous prime (20011010989) and next prime (20011011001).

It is a cyclic number.

It is not a de Polignac number, because 20011010995 - 2⁹ = 20011010483 is a prime.

It is a super-2 number, since 2×20011010995² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2843002 + ... + 2850031.

It is an arithmetic number, because the mean of its divisors is an integer number (1622514690).

Almost surely, 2^20011010995 is an apocalyptic number.

20011010995 is a deficient number, since it is larger than the sum of its proper divisors (5949224045).

20011010995 is a wasteful number, since it uses less digits than its factorization.

20011010995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693094.

The product of its (nonzero) digits is 810, while the sum is 28.

Adding to 20011010995 its reverse (59901011002), we get a palindrome (79912021997).

The spelling of 20011010995 in words is "twenty billion, eleven million, ten thousand, nine hundred ninety-five".