28900111110101 has 32 divisors (see below), whose sum is σ = 38182240512000. Its totient is φ = 21191143164480.

The previous prime is 28900111110097. The next prime is 28900111110121. The reversal of 28900111110101 is 10101111100982.

It is a cyclic number.

It is not a de Polignac number, because 28900111110101 - 2² = 28900111110097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28900111110121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66070625 + ... + 66506598.

It is an arithmetic number, because the mean of its divisors is an integer number (1193195016000).

Almost surely, 2^{28900111110101} is an apocalyptic number.

It is an amenable number.

28900111110101 is a deficient number, since it is larger than the sum of its proper divisors (9282129401899).

28900111110101 is a wasteful number, since it uses less digits than its factorization.

28900111110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132577409.

The product of its (nonzero) digits is 144, while the sum is 26.

The spelling of 28900111110101 in words is "twenty-eight trillion, nine hundred billion, one hundred eleven million, one hundred ten thousand, one hundred one".