100120000121111 has 4 divisors (see below), whose sum is σ = 100120826839992. Its totient is φ = 100119173402232.

The previous prime is 100120000121003. The next prime is 100120000121129. The reversal of 100120000121111 is 111121000021001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100120000121111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120000121092 and 100120000121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120000121611) 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, 413177756 + ... + 413420001.

It is an arithmetic number, because the mean of its divisors is an integer number (25030206709998).

Almost surely, 2^{100120000121111} is an apocalyptic number.

100120000121111 is a deficient number, since it is larger than the sum of its proper divisors (826718881).

100120000121111 is an equidigital number, since it uses as much as digits as its factorization.

100120000121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826718880.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100120000121111 its reverse (111121000021001), we get a palindrome (211241000142112).

The spelling of 100120000121111 in words is "one hundred trillion, one hundred twenty billion, one hundred twenty-one thousand, one hundred eleven".