31304442021044 has 6 divisors (see below), whose sum is σ = 54782773536834. Its totient is φ = 15652221010520.

The previous prime is 31304442020987. The next prime is 31304442021077. The reversal of 31304442021044 is 44012024440313.

It can be written as a sum of positive squares in only one way, i.e., 25718489395600 + 5585952625444 = 5071340^2 + 2363462^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31304442021044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3913055252627 + ... + 3913055252634.

It is an arithmetic number, because the mean of its divisors is an integer number (9130462256139).

Almost surely, 2^{31304442021044} is an apocalyptic number.

It is an amenable number.

31304442021044 is a deficient number, since it is larger than the sum of its proper divisors (23478331515790).

31304442021044 is a wasteful number, since it uses less digits than its factorization.

31304442021044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7826110505265 (or 7826110505263 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 31304442021044 its reverse (44012024440313), we get a palindrome (75316466461357).

The spelling of 31304442021044 in words is "thirty-one trillion, three hundred four billion, four hundred forty-two million, twenty-one thousand, forty-four".