100312112111 has 4 divisors (see below), whose sum is σ = 100313077392. Its totient is φ = 100311146832.

The previous prime is 100312112107. The next prime is 100312112113. The reversal of 100312112111 is 111211213001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 100312112111 - 2² = 100312112107 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 (100312112113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304955 + ... + 541868.

It is an arithmetic number, because the mean of its divisors is an integer number (25078269348).

Almost surely, 2^100312112111 is an apocalyptic number.

100312112111 is a deficient number, since it is larger than the sum of its proper divisors (965281).

100312112111 is an equidigital number, since it uses as much as digits as its factorization.

100312112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965280.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 100312112111 its reverse (111211213001), we get a palindrome (211523325112).

The spelling of 100312112111 in words is "one hundred billion, three hundred twelve million, one hundred twelve thousand, one hundred eleven".