313243222222421 has 16 divisors (see below), whose sum is σ = 325172502858240. Its totient is φ = 301431346971840.

The previous prime is 313243222222379. The next prime is 313243222222481. The reversal of 313243222222421 is 124222222342313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313243222222421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313243222222481) 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, 22446746 + ... + 33620571.

It is an arithmetic number, because the mean of its divisors is an integer number (20323281428640).

Almost surely, 2^{313243222222421} is an apocalyptic number.

313243222222421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

313243222222421 is a deficient number, since it is larger than the sum of its proper divisors (11929280635819).

313243222222421 is a wasteful number, since it uses less digits than its factorization.

313243222222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56068364.

The product of its digits is 110592, while the sum is 35.

Adding to 313243222222421 its reverse (124222222342313), we get a palindrome (437465444564734).

The spelling of 313243222222421 in words is "three hundred thirteen trillion, two hundred forty-three billion, two hundred twenty-two million, two hundred twenty-two thousand, four hundred twenty-one".