20331042344 has 8 divisors (see below), whose sum is σ = 38120704410. Its totient is φ = 10165521168.

The previous prime is 20331042313. The next prime is 20331042371. The reversal of 20331042344 is 44324013302.

It can be written as a sum of positive squares in only one way, i.e., 12403276900 + 7927765444 = 111370^2 + 89038^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1270690139 + ... + 1270690154.

Almost surely, 2^20331042344 is an apocalyptic number.

It is an amenable number.

20331042344 is a deficient number, since it is larger than the sum of its proper divisors (17789662066).

20331042344 is a wasteful number, since it uses less digits than its factorization.

20331042344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541380299 (or 2541380295 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20331042344 its reverse (44324013302), we get a palindrome (64655055646).

The spelling of 20331042344 in words is "twenty billion, three hundred thirty-one million, forty-two thousand, three hundred forty-four".