11340343402421 has 48 divisors (see below), whose sum is σ = 12839789050368. Its totient is φ = 10001122306560.

The previous prime is 11340343402393. The next prime is 11340343402429. The reversal of 11340343402421 is 12420434304311.

11340343402421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11340343402421 - 2⁶ = 11340343402357 is a prime.

It is a super-2 number, since 2×11340343402421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11340343402429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3874389860 + ... + 3874392786.

It is an arithmetic number, because the mean of its divisors is an integer number (267495605216).

Almost surely, 2^{11340343402421} is an apocalyptic number.

11340343402421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11340343402421 is a deficient number, since it is larger than the sum of its proper divisors (1499445647947).

11340343402421 is a wasteful number, since it uses less digits than its factorization.

11340343402421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250 (or 5239 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 11340343402421 its reverse (12420434304311), we get a palindrome (23760777706732).

The spelling of 11340343402421 in words is "eleven trillion, three hundred forty billion, three hundred forty-three million, four hundred two thousand, four hundred twenty-one".