440021052311 has 4 divisors (see below), whose sum is σ = 440029564800. Its totient is φ = 440012539824.

The previous prime is 440021052293. The next prime is 440021052319. The reversal of 440021052311 is 113250120044.

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

It is a cyclic number.

It is not a de Polignac number, because 440021052311 - 2¹⁰ = 440021051287 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 (440021052319) 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, 4178231 + ... + 4282248.

It is an arithmetic number, because the mean of its divisors is an integer number (110007391200).

Almost surely, 2^440021052311 is an apocalyptic number.

440021052311 is a deficient number, since it is larger than the sum of its proper divisors (8512489).

440021052311 is an equidigital number, since it uses as much as digits as its factorization.

440021052311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512488.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 440021052311 its reverse (113250120044), we get a palindrome (553271172355).

The spelling of 440021052311 in words is "four hundred forty billion, twenty-one million, fifty-two thousand, three hundred eleven".