11201257 has 4 divisors (see below), whose sum is σ = 11283156. Its totient is φ = 11119360.

The previous prime is 11201251. The next prime is 11201263. The reversal of 11201257 is 75210211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75210211 = 97 ⋅775363.

It is an interprime number because it is at equal distance from previous prime (11201251) and next prime (11201263).

It can be written as a sum of positive squares in 2 ways, for example, as 5683456 + 5517801 = 2384^2 + 2349^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201257 - 2⁷ = 11201129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40744 + ... + 41017.

It is an arithmetic number, because the mean of its divisors is an integer number (2820789).

Almost surely, 2^11201257 is an apocalyptic number.

It is an amenable number.

11201257 is a deficient number, since it is larger than the sum of its proper divisors (81899).

11201257 is an equidigital number, since it uses as much as digits as its factorization.

11201257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81898.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 11201257 is about 3346.8279011625. The cubic root of 11201257 is about 223.7461582936.

Adding to 11201257 its reverse (75210211), we get a palindrome (86411468).

The spelling of 11201257 in words is "eleven million, two hundred one thousand, two hundred fifty-seven".