11311004423421 has 6 divisors (see below), whose sum is σ = 16338117500510. Its totient is φ = 7540669615608.

The previous prime is 11311004423387. The next prime is 11311004423431. The reversal of 11311004423421 is 12432440011311.

It is a happy number.

11311004423421 is a `hidden beast` number, since 1 + 1 + 311 + 0 + 0 + 4 + 4 + 2 + 342 + 1 = 666.

11311004423421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7650341105625 + 3660663317796 = 2765925^2 + 1913286^2 .

It is not a de Polignac number, because 11311004423421 - 2¹¹ = 11311004421373 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 (11311004423431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628389134626 + ... + 628389134643.

Almost surely, 2^{11311004423421} is an apocalyptic number.

It is an amenable number.

11311004423421 is a deficient number, since it is larger than the sum of its proper divisors (5027113077089).

11311004423421 is a wasteful number, since it uses less digits than its factorization.

11311004423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256778269275 (or 1256778269272 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 11311004423421 its reverse (12432440011311), we get a palindrome (23743444434732).

The spelling of 11311004423421 in words is "eleven trillion, three hundred eleven billion, four million, four hundred twenty-three thousand, four hundred twenty-one".