100120111112111 has 4 divisors (see below), whose sum is σ = 100122462661632. Its totient is φ = 100117759562592.

The previous prime is 100120111112093. The next prime is 100120111112113. The reversal of 100120111112111 is 111211111021001.

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

It is a cyclic number.

It is not a de Polignac number, because 100120111112111 - 2²⁶ = 100120044003247 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 (100120111112113) 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, 1175710895 + ... + 1175796048.

It is an arithmetic number, because the mean of its divisors is an integer number (25030615665408).

Almost surely, 2^{100120111112111} is an apocalyptic number.

100120111112111 is a deficient number, since it is larger than the sum of its proper divisors (2351549521).

100120111112111 is an equidigital number, since it uses as much as digits as its factorization.

100120111112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351549520.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 100120111112111 its reverse (111211111021001), we get a palindrome (211331222133112).

The spelling of 100120111112111 in words is "one hundred trillion, one hundred twenty billion, one hundred eleven million, one hundred twelve thousand, one hundred eleven".