313322321313242 has 4 divisors (see below), whose sum is σ = 469983481969866. Its totient is φ = 156661160656620.

The previous prime is 313322321313217. The next prime is 313322321313247. The reversal of 313322321313242 is 242313123223313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 242766034064401 + 70556287248841 = 15580951^2 + 8399779^2 .

It is not an unprimeable number, because it can be changed into a prime (313322321313247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78330580328309 + ... + 78330580328312.

Almost surely, 2^{313322321313242} is an apocalyptic number.

313322321313242 is a deficient number, since it is larger than the sum of its proper divisors (156661160656624).

313322321313242 is a wasteful number, since it uses less digits than its factorization.

313322321313242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156661160656623.

The product of its digits is 93312, while the sum is 35.

Adding to 313322321313242 its reverse (242313123223313), we get a palindrome (555635444536555).

The spelling of 313322321313242 in words is "three hundred thirteen trillion, three hundred twenty-two billion, three hundred twenty-one million, three hundred thirteen thousand, two hundred forty-two".