11102242661 has 4 divisors (see below), whose sum is σ = 11150724300. Its totient is φ = 11053761024.

The previous prime is 11102242631. The next prime is 11102242667. The reversal of 11102242661 is 16624220111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16624220111 = 599 ⋅27753289.

It can be written as a sum of positive squares in 2 ways, for example, as 4584102436 + 6518140225 = 67706^2 + 80735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11102242661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11102242661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102242667) 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, 24240476 + ... + 24240933.

It is an arithmetic number, because the mean of its divisors is an integer number (2787681075).

Almost surely, 2^11102242661 is an apocalyptic number.

It is an amenable number.

11102242661 is a deficient number, since it is larger than the sum of its proper divisors (48481639).

11102242661 is an equidigital number, since it uses as much as digits as its factorization.

11102242661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48481638.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 11102242661 its reverse (16624220111), we get a palindrome (27726462772).

The spelling of 11102242661 in words is "eleven billion, one hundred two million, two hundred forty-two thousand, six hundred sixty-one".