11120140421 has 4 divisors (see below), whose sum is σ = 11975535852. Its totient is φ = 10264744992.

The previous prime is 11120140411. The next prime is 11120140439. The reversal of 11120140421 is 12404102111.

11120140421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3640312225 + 7479828196 = 60335^2 + 86486^2 .

It is a cyclic number.

It is not a de Polignac number, because 11120140421 - 2¹⁰ = 11120139397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11120140421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120140411) 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, 427697696 + ... + 427697721.

It is an arithmetic number, because the mean of its divisors is an integer number (2993883963).

Almost surely, 2^11120140421 is an apocalyptic number.

It is an amenable number.

11120140421 is a deficient number, since it is larger than the sum of its proper divisors (855395431).

11120140421 is an equidigital number, since it uses as much as digits as its factorization.

11120140421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855395430.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11120140421 its reverse (12404102111), we get a palindrome (23524242532).

The spelling of 11120140421 in words is "eleven billion, one hundred twenty million, one hundred forty thousand, four hundred twenty-one".