11233802861 has 4 divisors (see below), whose sum is σ = 11894614812. Its totient is φ = 10572990912.

The previous prime is 11233802791. The next prime is 11233802863. The reversal of 11233802861 is 16820833211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6290869225 + 4942933636 = 79315^2 + 70306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11233802861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11233802863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330405950 + ... + 330405983.

It is an arithmetic number, because the mean of its divisors is an integer number (2973653703).

Almost surely, 2^11233802861 is an apocalyptic number.

It is an amenable number.

11233802861 is a deficient number, since it is larger than the sum of its proper divisors (660811951).

11233802861 is an equidigital number, since it uses as much as digits as its factorization.

11233802861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660811950.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 11233802861 in words is "eleven billion, two hundred thirty-three million, eight hundred two thousand, eight hundred sixty-one".