20311440313334 has 16 divisors (see below), whose sum is σ = 32614266340800. Its totient is φ = 9458137236744.

The previous prime is 20311440313319. The next prime is 20311440313357. The reversal of 20311440313334 is 43331304411302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20311440313334.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4529756972 + ... + 4529761455.

It is an arithmetic number, because the mean of its divisors is an integer number (2038391646300).

Almost surely, 2^{20311440313334} is an apocalyptic number.

20311440313334 is a deficient number, since it is larger than the sum of its proper divisors (12302826027466).

20311440313334 is a wasteful number, since it uses less digits than its factorization.

20311440313334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9059518507.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 20311440313334 its reverse (43331304411302), we get a palindrome (63642744724636).

The spelling of 20311440313334 in words is "twenty trillion, three hundred eleven billion, four hundred forty million, three hundred thirteen thousand, three hundred thirty-four".