11641056311 has 4 divisors (see below), whose sum is σ = 11641536624. Its totient is φ = 11640576000.

The previous prime is 11641056247. The next prime is 11641056331. The reversal of 11641056311 is 11365014611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11365014611 = 2377 ⋅4781243.

It is a cyclic number.

It is not a de Polignac number, because 11641056311 - 2⁶ = 11641056247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11641056331) 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, 201755 + ... + 252956.

It is an arithmetic number, because the mean of its divisors is an integer number (2910384156).

Almost surely, 2^11641056311 is an apocalyptic number.

11641056311 is a deficient number, since it is larger than the sum of its proper divisors (480313).

11641056311 is an equidigital number, since it uses as much as digits as its factorization.

11641056311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480312.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 11641056311 in words is "eleven billion, six hundred forty-one million, fifty-six thousand, three hundred eleven".