11141387 has 4 divisors (see below), whose sum is σ = 11190696. Its totient is φ = 11092080.

The previous prime is 11141371. The next prime is 11141393. The reversal of 11141387 is 78314111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78314111 = 179 ⋅437509.

It is a cyclic number.

It is not a de Polignac number, because 11141387 - 2⁴ = 11141371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11141327) 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, 24314 + ... + 24767.

It is an arithmetic number, because the mean of its divisors is an integer number (2797674).

Almost surely, 2^11141387 is an apocalyptic number.

11141387 is a deficient number, since it is larger than the sum of its proper divisors (49309).

11141387 is an equidigital number, since it uses as much as digits as its factorization.

11141387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49308.

The product of its digits is 672, while the sum is 26.

The square root of 11141387 is about 3337.8716272499. The cubic root of 11141387 is about 223.3468096618.

Adding to 11141387 its reverse (78314111), we get a palindrome (89455498).

The spelling of 11141387 in words is "eleven million, one hundred forty-one thousand, three hundred eighty-seven".