101111111005 has 32 divisors (see below), whose sum is σ = 123634667520. Its totient is φ = 79366808640.

The previous prime is 101111110981. The next prime is 101111111027. The reversal of 101111111005 is 500111111101.

It is not a de Polignac number, because 101111111005 - 2¹⁷ = 101110979933 is a prime.

It is a super-2 number, since 2×101111111005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97315276 + ... + 97316314.

It is an arithmetic number, because the mean of its divisors is an integer number (3863583360).

Almost surely, 2^101111111005 is an apocalyptic number.

It is an amenable number.

101111111005 is a deficient number, since it is larger than the sum of its proper divisors (22523556515).

101111111005 is a wasteful number, since it uses less digits than its factorization.

101111111005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169.

The product of its (nonzero) digits is 5, while the sum is 13.

Adding to 101111111005 its reverse (500111111101), we get a palindrome (601222222106).

The spelling of 101111111005 in words is "one hundred one billion, one hundred eleven million, one hundred eleven thousand, five".