11443110421 has 8 divisors (see below), whose sum is σ = 11857450880. Its totient is φ = 11035507392.

The previous prime is 11443110403. The next prime is 11443110439. The reversal of 11443110421 is 12401134411.

It is an interprime number because it is at equal distance from previous prime (11443110403) and next prime (11443110439).

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-11443110421 is a prime.

It is a super-2 number, since 2×11443110421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11443110392 and 11443110401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11443110491) 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, 1680900 + ... + 1687693.

It is an arithmetic number, because the mean of its divisors is an integer number (1482181360).

Almost surely, 2^11443110421 is an apocalyptic number.

It is an amenable number.

11443110421 is a deficient number, since it is larger than the sum of its proper divisors (414340459).

11443110421 is an equidigital number, since it uses as much as digits as its factorization.

11443110421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368715.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11443110421 its reverse (12401134411), we get a palindrome (23844244832).

The spelling of 11443110421 in words is "eleven billion, four hundred forty-three million, one hundred ten thousand, four hundred twenty-one".