213440331044 has 6 divisors (see below), whose sum is σ = 373520579334. Its totient is φ = 106720165520.

The previous prime is 213440331019. The next prime is 213440331067. The reversal of 213440331044 is 440133044312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 125372646400 + 88067684644 = 354080^2 + 296762^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213440330998 and 213440331016.

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, 26680041377 + ... + 26680041384.

It is an arithmetic number, because the mean of its divisors is an integer number (62253429889).

Almost surely, 2^213440331044 is an apocalyptic number.

It is an amenable number.

213440331044 is a deficient number, since it is larger than the sum of its proper divisors (160080248290).

213440331044 is a wasteful number, since it uses less digits than its factorization.

213440331044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53360082765 (or 53360082763 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 213440331044 its reverse (440133044312), we get a palindrome (653573375356).

The spelling of 213440331044 in words is "two hundred thirteen billion, four hundred forty million, three hundred thirty-one thousand, forty-four".