11200421501 has 4 divisors (see below), whose sum is σ = 11217841152. Its totient is φ = 11183001852.

The previous prime is 11200421461. The next prime is 11200421503. The reversal of 11200421501 is 10512400211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11200421501 - 2³⁰ = 10126679677 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 11200421501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200421503) 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, 8708861 + ... + 8710146.

It is an arithmetic number, because the mean of its divisors is an integer number (2804460288).

Almost surely, 2^11200421501 is an apocalyptic number.

It is an amenable number.

11200421501 is a deficient number, since it is larger than the sum of its proper divisors (17419651).

11200421501 is an equidigital number, since it uses as much as digits as its factorization.

11200421501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17419650.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 11200421501 its reverse (10512400211), we get a palindrome (21712821712).

The spelling of 11200421501 in words is "eleven billion, two hundred million, four hundred twenty-one thousand, five hundred one".