80100111101 has 4 divisors (see below), whose sum is σ = 81804368832. Its totient is φ = 78395853372.

The previous prime is 80100111071. The next prime is 80100111139. The reversal of 80100111101 is 10111100108.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80100111101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80100111191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852128795 + ... + 852128888.

It is an arithmetic number, because the mean of its divisors is an integer number (20451092208).

Almost surely, 2^80100111101 is an apocalyptic number.

It is an amenable number.

80100111101 is a deficient number, since it is larger than the sum of its proper divisors (1704257731).

80100111101 is a wasteful number, since it uses less digits than its factorization.

80100111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704257730.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 80100111101 its reverse (10111100108), we get a palindrome (90211211209).

The spelling of 80100111101 in words is "eighty billion, one hundred million, one hundred eleven thousand, one hundred one".