11123314421 has 8 divisors (see below), whose sum is σ = 11999847384. Its totient is φ = 10271472640.

The previous prime is 11123314417. The next prime is 11123314439. The reversal of 11123314421 is 12441332111.

It can be written as a sum of positive squares in 4 ways, for example, as 757020196 + 10366294225 = 27514^2 + 101815^2 .

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 11123314421 - 2² = 11123314417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123314121) 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, 6171860 + ... + 6173661.

It is an arithmetic number, because the mean of its divisors is an integer number (1499980923).

Almost surely, 2^11123314421 is an apocalyptic number.

It is an amenable number.

11123314421 is a deficient number, since it is larger than the sum of its proper divisors (876532963).

11123314421 is a wasteful number, since it uses less digits than its factorization.

11123314421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12345591.

The product of its digits is 576, while the sum is 23.

Adding to 11123314421 its reverse (12441332111), we get a palindrome (23564646532).

The spelling of 11123314421 in words is "eleven billion, one hundred twenty-three million, three hundred fourteen thousand, four hundred twenty-one".