1100344421 has 8 divisors (see below), whose sum is σ = 1201039104. Its totient is φ = 999760320.

The previous prime is 1100344409. The next prime is 1100344423. The reversal of 1100344421 is 1244430011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100344421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100344393 and 1100344402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100344423) 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, 6101 + ... + 47306.

It is an arithmetic number, because the mean of its divisors is an integer number (150129888).

Almost surely, 2^1100344421 is an apocalyptic number.

1100344421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100344421 is a deficient number, since it is larger than the sum of its proper divisors (100694683).

1100344421 is a wasteful number, since it uses less digits than its factorization.

1100344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55291.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1100344421 is about 33171.4398391146. The cubic root of 1100344421 is about 1032.3878432892.

Adding to 1100344421 its reverse (1244430011), we get a palindrome (2344774432).

The spelling of 1100344421 in words is "one billion, one hundred million, three hundred forty-four thousand, four hundred twenty-one".