11121421415 has 8 divisors (see below), whose sum is σ = 14372298528. Its totient is φ = 8212741920.

The previous prime is 11121421397. The next prime is 11121421417. The reversal of 11121421415 is 51412412111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11121421415 - 2⁶ = 11121421351 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 (11121421417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85549331 + ... + 85549460.

It is an arithmetic number, because the mean of its divisors is an integer number (1796537316).

Almost surely, 2^11121421415 is an apocalyptic number.

11121421415 is a deficient number, since it is larger than the sum of its proper divisors (3250877113).

11121421415 is a wasteful number, since it uses less digits than its factorization.

11121421415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171098809.

The product of its digits is 320, while the sum is 23.

Adding to 11121421415 its reverse (51412412111), we get a palindrome (62533833526).

The spelling of 11121421415 in words is "eleven billion, one hundred twenty-one million, four hundred twenty-one thousand, four hundred fifteen".