20311113344 has 32 divisors (see below), whose sum is σ = 40518935940. Its totient is φ = 10141655040.

The previous prime is 20311113313. The next prime is 20311113359. The reversal of 20311113344 is 44331111302.

It can be written as a sum of positive squares in 2 ways, for example, as 12338766400 + 7972346944 = 111080^2 + 89288^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14417 + ... + 202064.

Almost surely, 2^20311113344 is an apocalyptic number.

It is an amenable number.

20311113344 is a deficient number, since it is larger than the sum of its proper divisors (20207822596).

20311113344 is an equidigital number, since it uses as much as digits as its factorization.

20311113344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217228 (or 217216 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20311113344 its reverse (44331111302), we get a palindrome (64642224646).

The spelling of 20311113344 in words is "twenty billion, three hundred eleven million, one hundred thirteen thousand, three hundred forty-four".