11571002 has 4 divisors (see below), whose sum is σ = 17356506. Its totient is φ = 5785500.

The previous prime is 11570989. The next prime is 11571017. The reversal of 11571002 is 20017511.

11571002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20017511 = 29 ⋅690259.

It can be written as a sum of positive squares in only one way, i.e., 10569001 + 1002001 = 3251^2 + 1001^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2892749 + ... + 2892752.

Almost surely, 2^11571002 is an apocalyptic number.

11571002 is a deficient number, since it is larger than the sum of its proper divisors (5785504).

11571002 is an equidigital number, since it uses as much as digits as its factorization.

11571002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785503.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 11571002 is about 3401.6175563987. The cubic root of 11571002 is about 226.1814529379.

Adding to 11571002 its reverse (20017511), we get a palindrome (31588513).

It can be divided in two parts, 115 and 71002, that added together give a palindrome (71117).

The spelling of 11571002 in words is "eleven million, five hundred seventy-one thousand, two".