11321401420421 has 8 divisors (see below), whose sum is σ = 11323935634944. Its totient is φ = 11318867441280.

The previous prime is 11321401420403. The next prime is 11321401420453. The reversal of 11321401420421 is 12402410412311.

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 11321401420421 - 2³⁴ = 11304221551237 is a prime.

It is a super-3 number, since 3×11321401420421³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321401420321) 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, 123968786 + ... + 124060076.

It is an arithmetic number, because the mean of its divisors is an integer number (1415491954368).

Almost surely, 2^{11321401420421} is an apocalyptic number.

It is an amenable number.

11321401420421 is a deficient number, since it is larger than the sum of its proper divisors (2534214523).

11321401420421 is an equidigital number, since it uses as much as digits as its factorization.

11321401420421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117691.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 11321401420421 its reverse (12402410412311), we get a palindrome (23723811832732).

The spelling of 11321401420421 in words is "eleven trillion, three hundred twenty-one billion, four hundred one million, four hundred twenty thousand, four hundred twenty-one".