11100421033 has 8 divisors (see below), whose sum is σ = 12020347976. Its totient is φ = 10189929600.

The previous prime is 11100421019. The next prime is 11100421039. The reversal of 11100421033 is 33012400111.

It can be written as a sum of positive squares in 4 ways, for example, as 34012224 + 11066408809 = 5832^2 + 105197^2 .

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 11100421033 - 2²¹ = 11098323881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11100420998 and 11100421016.

It is not an unprimeable number, because it can be changed into a prime (11100421039) 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, 2356428 + ... + 2361133.

It is an arithmetic number, because the mean of its divisors is an integer number (1502543497).

Almost surely, 2^11100421033 is an apocalyptic number.

11100421033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11100421033 is a deficient number, since it is larger than the sum of its proper divisors (919926943).

11100421033 is a wasteful number, since it uses less digits than its factorization.

11100421033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717755.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11100421033 its reverse (33012400111), we get a palindrome (44112821144).

The spelling of 11100421033 in words is "eleven billion, one hundred million, four hundred twenty-one thousand, thirty-three".