11101203421 has 8 divisors (see below), whose sum is σ = 13840461504. Its totient is φ = 8650288320.

The previous prime is 11101203349. The next prime is 11101203433. The reversal of 11101203421 is 12430210111.

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 11101203421 - 2⁷ = 11101203293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101203395 and 11101203404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101203481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72085660 + ... + 72085813.

It is an arithmetic number, because the mean of its divisors is an integer number (1730057688).

Almost surely, 2^11101203421 is an apocalyptic number.

11101203421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11101203421 is a deficient number, since it is larger than the sum of its proper divisors (2739258083).

11101203421 is a wasteful number, since it uses less digits than its factorization.

11101203421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144171491.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11101203421 its reverse (12430210111), we get a palindrome (23531413532).

The spelling of 11101203421 in words is "eleven billion, one hundred one million, two hundred three thousand, four hundred twenty-one".