101111000128 has 56 divisors (see below), whose sum is σ = 201321033984. Its totient is φ = 50384716800.

The previous prime is 101111000099. The next prime is 101111000129. The reversal of 101111000128 is 821000111101.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (101111000129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44326348 + ... + 44328628.

It is an arithmetic number, because the mean of its divisors is an integer number (3595018464).

Almost surely, 2^101111000128 is an apocalyptic number.

It is an amenable number.

101111000128 is a deficient number, since it is larger than the sum of its proper divisors (100210033856).

101111000128 is a wasteful number, since it uses less digits than its factorization.

101111000128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331 (or 4321 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 101111000128 its reverse (821000111101), we get a palindrome (922111111229).

The spelling of 101111000128 in words is "one hundred one billion, one hundred eleven million, one hundred twenty-eight", and thus it is an aban number.