11400204251 has 2 divisors, whose sum is σ = 11400204252. Its totient is φ = 11400204250.

The previous prime is 11400204223. The next prime is 11400204289. The reversal of 11400204251 is 15240200411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11400204251 is a prime.

It is not a weakly prime, because it can be changed into another prime (11400204451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700102125 + 5700102126.

It is an arithmetic number, because the mean of its divisors is an integer number (5700102126).

Almost surely, 2^11400204251 is an apocalyptic number.

11400204251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11400204251 is an equidigital number, since it uses as much as digits as its factorization.

11400204251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 11400204251 its reverse (15240200411), we get a palindrome (26640404662).

The spelling of 11400204251 in words is "eleven billion, four hundred million, two hundred four thousand, two hundred fifty-one".