11134203400421 has 2 divisors, whose sum is σ = 11134203400422. Its totient is φ = 11134203400420.

The previous prime is 11134203400393. The next prime is 11134203400433. The reversal of 11134203400421 is 12400430243111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11082940101025 + 51263299396 = 3329105^2 + 226414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11134203400421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11134203400471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5567101700210 + 5567101700211.

It is an arithmetic number, because the mean of its divisors is an integer number (5567101700211).

Almost surely, 2^{11134203400421} is an apocalyptic number.

It is an amenable number.

11134203400421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11134203400421 is an equidigital number, since it uses as much as digits as its factorization.

11134203400421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11134203400421 its reverse (12400430243111), we get a palindrome (23534633643532).

The spelling of 11134203400421 in words is "eleven trillion, one hundred thirty-four billion, two hundred three million, four hundred thousand, four hundred twenty-one".