313044144233421 has 16 divisors (see below), whose sum is σ = 420682701209600. Its totient is φ = 207050872614768.

The previous prime is 313044144233369. The next prime is 313044144233437. The reversal of 313044144233421 is 124332441440313.

It is not a de Polignac number, because 313044144233421 - 2⁹ = 313044144232909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313044144233421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313044144233021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37277100 + ... + 44896218.

It is an arithmetic number, because the mean of its divisors is an integer number (26292668825600).

Almost surely, 2^{313044144233421} is an apocalyptic number.

It is an amenable number.

313044144233421 is a deficient number, since it is larger than the sum of its proper divisors (107638556976179).

313044144233421 is a wasteful number, since it uses less digits than its factorization.

313044144233421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7727088.

The product of its (nonzero) digits is 331776, while the sum is 39.

Adding to 313044144233421 its reverse (124332441440313), we get a palindrome (437376585673734).

The spelling of 313044144233421 in words is "three hundred thirteen trillion, forty-four billion, one hundred forty-four million, two hundred thirty-three thousand, four hundred twenty-one".