213400313044 has 12 divisors (see below), whose sum is σ = 382559098068. Its totient is φ = 104097713600.

The previous prime is 213400313041. The next prime is 213400313059. The reversal of 213400313044 is 440313004312.

It can be written as a sum of positive squares in 2 ways, for example, as 43738703044 + 169661610000 = 209138^2 + 411900^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213400313041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650610547 + ... + 650610874.

It is an arithmetic number, because the mean of its divisors is an integer number (31879924839).

Almost surely, 2^213400313044 is an apocalyptic number.

It is an amenable number.

213400313044 is a deficient number, since it is larger than the sum of its proper divisors (169158785024).

213400313044 is a wasteful number, since it uses less digits than its factorization.

213400313044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301221466 (or 1301221464 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 213400313044 its reverse (440313004312), we get a palindrome (653713317356).

The spelling of 213400313044 in words is "two hundred thirteen billion, four hundred million, three hundred thirteen thousand, forty-four".