11110100121 has 6 divisors (see below), whose sum is σ = 16047922410. Its totient is φ = 7406733408.

The previous prime is 11110100119. The next prime is 11110100153. The reversal of 11110100121 is 12100101111.

11110100121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8482410000 + 2627690121 = 92100^2 + 51261^2 .

It is not a de Polignac number, because 11110100121 - 2¹ = 11110100119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1234455569 = 11110100121 / (1 + 1 + 1 + 1 + 0 + 1 + 0 + 0 + 1 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (11110100101) 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 5 ways as a sum of consecutive naturals, for example, 617227776 + ... + 617227793.

It is an arithmetic number, because the mean of its divisors is an integer number (2674653735).

Almost surely, 2^11110100121 is an apocalyptic number.

It is an amenable number.

11110100121 is a deficient number, since it is larger than the sum of its proper divisors (4937822289).

11110100121 is a wasteful number, since it uses less digits than its factorization.

11110100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234455575 (or 1234455572 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11110100121 its reverse (12100101111), we get a palindrome (23210201232).

The spelling of 11110100121 in words is "eleven billion, one hundred ten million, one hundred thousand, one hundred twenty-one".