11100420101 has 4 divisors (see below), whose sum is σ = 11110805100. Its totient is φ = 11090035104.

The previous prime is 11100420053. The next prime is 11100420109. The reversal of 11100420101 is 10102400111.

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 2700880900 + 8399539201 = 51970^2 + 91649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100420101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100420109) 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, 5190896 + ... + 5193033.

It is an arithmetic number, because the mean of its divisors is an integer number (2777701275).

Almost surely, 2^11100420101 is an apocalyptic number.

It is an amenable number.

11100420101 is a deficient number, since it is larger than the sum of its proper divisors (10384999).

11100420101 is a wasteful number, since it uses less digits than its factorization.

11100420101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10384998.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11100420101 its reverse (10102400111), we get a palindrome (21202820212).

The spelling of 11100420101 in words is "eleven billion, one hundred million, four hundred twenty thousand, one hundred one".