103111121101 has 4 divisors (see below), whose sum is σ = 103117363804. Its totient is φ = 103104878400.

The previous prime is 103111121053. The next prime is 103111121111. The reversal of 103111121101 is 101121111301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13799200900 + 89311920201 = 117470^2 + 298851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103111121101 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 (103111121111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3096510 + ... + 3129631.

It is an arithmetic number, because the mean of its divisors is an integer number (25779340951).

Almost surely, 2^103111121101 is an apocalyptic number.

It is an amenable number.

103111121101 is a deficient number, since it is larger than the sum of its proper divisors (6242703).

103111121101 is an equidigital number, since it uses as much as digits as its factorization.

103111121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6242702.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 103111121101 its reverse (101121111301), we get a palindrome (204232232402).

The spelling of 103111121101 in words is "one hundred three billion, one hundred eleven million, one hundred twenty-one thousand, one hundred one".