313221320102 has 4 divisors (see below), whose sum is σ = 469831980156. Its totient is φ = 156610660050.

The previous prime is 313221320077. The next prime is 313221320107. The reversal of 313221320102 is 201023122313.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313221320107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78305330024 + ... + 78305330027.

It is an arithmetic number, because the mean of its divisors is an integer number (117457995039).

Almost surely, 2^313221320102 is an apocalyptic number.

313221320102 is a deficient number, since it is larger than the sum of its proper divisors (156610660054).

313221320102 is a wasteful number, since it uses less digits than its factorization.

313221320102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156610660053.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 313221320102 its reverse (201023122313), we get a palindrome (514244442415).

The spelling of 313221320102 in words is "three hundred thirteen billion, two hundred twenty-one million, three hundred twenty thousand, one hundred two".