11421043513 has 8 divisors (see below), whose sum is σ = 13192221600. Its totient is φ = 9772015680.

The previous prime is 11421043499. The next prime is 11421043519. The reversal of 11421043513 is 31534012411.

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

It is a cyclic number.

It is not a de Polignac number, because 11421043513 - 2²⁵ = 11387489081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11421043519) 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, 30537363 + ... + 30537736.

It is an arithmetic number, because the mean of its divisors is an integer number (1649027700).

Almost surely, 2^11421043513 is an apocalyptic number.

It is an amenable number.

11421043513 is a deficient number, since it is larger than the sum of its proper divisors (1771178087).

11421043513 is a wasteful number, since it uses less digits than its factorization.

11421043513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61075127.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 11421043513 its reverse (31534012411), we get a palindrome (42955055924).

The spelling of 11421043513 in words is "eleven billion, four hundred twenty-one million, forty-three thousand, five hundred thirteen".