11420251 has 2 divisors, whose sum is σ = 11420252. Its totient is φ = 11420250.

The previous prime is 11420239. The next prime is 11420291. The reversal of 11420251 is 15202411.

11420251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11420251 - 2²¹ = 9323099 is a prime.

It is not a weakly prime, because it can be changed into another prime (11420291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710125 + 5710126.

It is an arithmetic number, because the mean of its divisors is an integer number (5710126).

Almost surely, 2^11420251 is an apocalyptic number.

11420251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11420251 is an equidigital number, since it uses as much as digits as its factorization.

11420251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 11420251 is about 3379.3861868689. The cubic root of 11420251 is about 225.1948994383.

Adding to 11420251 its reverse (15202411), we get a palindrome (26622662).

The spelling of 11420251 in words is "eleven million, four hundred twenty thousand, two hundred fifty-one".